/wp-includes/functions.php

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<?php

/**

 * Main WordPress API

 *

 * @package WordPress

 */



/**

 * Converts MySQL DATETIME field to user specified date format.

 *

 * If $dateformatstring has 'G' value, then gmmktime() function will be used to

 * make the time. If $dateformatstring is set to 'U', then mktime() function

 * will be used to make the time.

 *

 * The $translate will only be used, if it is set to true and it is by default

 * and if the $wp_locale object has the month and weekday set.

 *

 * @since 0.71

 *

 * @param string $dateformatstring Either 'G', 'U', or php date format.

 * @param string $mysqlstring Time from mysql DATETIME field.

 * @param bool $translate Optional. Default is true. Will switch format to locale.

 * @return string Date formated by $dateformatstring or locale (if available).

 */

function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) {

	$m = $mysqlstring;

	if ( empty( $m ) )

		return false;



	if ( 'G' == $dateformatstring )

		return strtotime( $m . ' +0000' );



	$i = strtotime( $m );



	if ( 'U' == $dateformatstring )

		return $i;



	if ( $translate )

		return date_i18n( $dateformatstring, $i );

	else

		return date( $dateformatstring, $i );

}



/**

 * Retrieve the current time based on specified type.

 *

 * The 'mysql' type will return the time in the format for MySQL DATETIME field.

 * The 'timestamp' type will return the current timestamp.

 *

 * If $gmt is set to either '1' or 'true', then both types will use GMT time.

 * if $gmt is false, the output is adjusted with the GMT offset in the WordPress option.

 *

 * @since 1.0.0

 *

 * @param string $type Either 'mysql' or 'timestamp'.

 * @param int|bool $gmt Optional. Whether to use GMT timezone. Default is false.

 * @return int|string String if $type is 'gmt', int if $type is 'timestamp'.

 */

function current_time( $type, $gmt = 0 ) {

	switch ( $type ) {

		case 'mysql':

			return ( $gmt ) ? gmdate( 'Y-m-d H:i:s' ) : gmdate( 'Y-m-d H:i:s', ( time() + ( get_option( 'gmt_offset' ) * 3600 ) ) );

			break;

		case 'timestamp':

			return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * 3600 );

			break;

	}

}



/**

 * Retrieve the date in localized format, based on timestamp.

 *

 * If the locale specifies the locale month and weekday, then the locale will

 * take over the format for the date. If it isn't, then the date format string

 * will be used instead.

 *

 * @since 0.71

 *

 * @param string $dateformatstring Format to display the date.

 * @param int $unixtimestamp Optional. Unix timestamp.

 * @param bool $gmt Optional, default is false. Whether to convert to GMT for time.

 * @return string The date, translated if locale specifies it.

 */

function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) {

	global $wp_locale;

	$i = $unixtimestamp;



	if ( false === $i ) {

		if ( ! $gmt )

			$i = current_time( 'timestamp' );

		else

			$i = time();

		// we should not let date() interfere with our

		// specially computed timestamp

		$gmt = true;

	}



	// store original value for language with untypical grammars

	// see http://core.trac.wordpress.org/ticket/9396

	$req_format = $dateformatstring;



	$datefunc = $gmt? 'gmdate' : 'date';



	if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) {

		$datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) );

		$datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth );

		$dateweekday = $wp_locale->get_weekday( $datefunc( 'w', $i ) );

		$dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday );

		$datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) );

		$datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i ) );

		$dateformatstring = ' '.$dateformatstring;

		$dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring );

		$dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring );

		$dateformatstring = preg_replace( "/([^\\\])l/", "\\1" . backslashit( $dateweekday ), $dateformatstring );

		$dateformatstring = preg_replace( "/([^\\\])M/", "\\1" . backslashit( $datemonth_abbrev ), $dateformatstring );

		$dateformatstring = preg_replace( "/([^\\\])a/", "\\1" . backslashit( $datemeridiem ), $dateformatstring );

		$dateformatstring = preg_replace( "/([^\\\])A/", "\\1" . backslashit( $datemeridiem_capital ), $dateformatstring );



		$dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );

	}

	$timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' );

	$timezone_formats_re = implode( '|', $timezone_formats );

	if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) ) {

		$timezone_string = get_option( 'timezone_string' );

		if ( $timezone_string ) {

			$timezone_object = timezone_open( $timezone_string );

			$date_object = date_create( null, $timezone_object );

			foreach( $timezone_formats as $timezone_format ) {

				if ( false !== strpos( $dateformatstring, $timezone_format ) ) {

					$formatted = date_format( $date_object, $timezone_format );

					$dateformatstring = ' '.$dateformatstring;

					$dateformatstring = preg_replace( "/([^\\\])$timezone_format/", "\\1" . backslashit( $formatted ), $dateformatstring );

					$dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );

				}

			}

		}

	}

	$j = @$datefunc( $dateformatstring, $i );

	// allow plugins to redo this entirely for languages with untypical grammars

	$j = apply_filters('date_i18n', $j, $req_format, $i, $gmt);

	return $j;

}



/**

 * Convert integer number to format based on the locale.

 *

 * @since 2.3.0

 *

 * @param int $number The number to convert based on locale.

 * @param int $decimals Precision of the number of decimal places.

 * @return string Converted number in string format.

 */

function number_format_i18n( $number, $decimals = 0 ) {

	global $wp_locale;

	$formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );

	return apply_filters( 'number_format_i18n', $formatted );

}



/**

 * Convert number of bytes largest unit bytes will fit into.

 *

 * It is easier to read 1kB than 1024 bytes and 1MB than 1048576 bytes. Converts

 * number of bytes to human readable number by taking the number of that unit

 * that the bytes will go into it. Supports TB value.

 *

 * Please note that integers in PHP are limited to 32 bits, unless they are on

 * 64 bit architecture, then they have 64 bit size. If you need to place the

 * larger size then what PHP integer type will hold, then use a string. It will

 * be converted to a double, which should always have 64 bit length.

 *

 * Technically the correct unit names for powers of 1024 are KiB, MiB etc.

 * @link http://en.wikipedia.org/wiki/Byte

 *

 * @since 2.3.0

 *

 * @param int|string $bytes Number of bytes. Note max integer size for integers.

 * @param int $decimals Precision of number of decimal places. Deprecated.

 * @return bool|string False on failure. Number string on success.

 */

function size_format( $bytes, $decimals = 0 ) {

	$quant = array(

		// ========================= Origin ====

		'TB' => 1099511627776,  // pow( 1024, 4)

		'GB' => 1073741824,     // pow( 1024, 3)

		'MB' => 1048576,        // pow( 1024, 2)

		'kB' => 1024,           // pow( 1024, 1)

		'B ' => 1,              // pow( 1024, 0)

	);

	foreach ( $quant as $unit => $mag )

		if ( doubleval($bytes) >= $mag )

			return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit;



	return false;

}



/**

 * Get the week start and end from the datetime or date string from mysql.

 *

 * @since 0.71

 *

 * @param string $mysqlstring Date or datetime field type from mysql.

 * @param int $start_of_week Optional. Start of the week as an integer.

 * @return array Keys are 'start' and 'end'.

 */

function get_weekstartend( $mysqlstring, $start_of_week = '' ) {

	$my = substr( $mysqlstring, 0, 4 ); // Mysql string Year

	$mm = substr( $mysqlstring, 8, 2 ); // Mysql string Month

	$md = substr( $mysqlstring, 5, 2 ); // Mysql string day

	$day = mktime( 0, 0, 0, $md, $mm, $my ); // The timestamp for mysqlstring day.

	$weekday = date( 'w', $day ); // The day of the week from the timestamp

	if ( !is_numeric($start_of_week) )

		$start_of_week = get_option( 'start_of_week' );



	if ( $weekday < $start_of_week )

		$weekday += 7;



	$start = $day - 86400 * ( $weekday - $start_of_week ); // The most recent week start day on or before $day

	$end = $start + 604799; // $start + 7 days - 1 second

	return compact( 'start', 'end' );

}



/**

 * Unserialize value only if it was serialized.

 *

 * @since 2.0.0

 *

 * @param string $original Maybe unserialized original, if is needed.

 * @return mixed Unserialized data can be any type.

 */

function maybe_unserialize( $original ) {

	if ( is_serialized( $original ) ) // don't attempt to unserialize data that wasn't serialized going in

		return @unserialize( $original );

	return $original;

}



/**

 * Check value to find if it was serialized.

 *

 * If $data is not an string, then returned value will always be false.

 * Serialized data is always a string.

 *

 * @since 2.0.5

 *

 * @param mixed $data Value to check to see if was serialized.

 * @return bool False if not serialized and true if it was.

 */

function is_serialized( $data ) {

	// if it isn't a string, it isn't serialized

	if ( ! is_string( $data ) )

		return false;

	$data = trim( $data );

 	if ( 'N;' == $data )

		return true;

	$length = strlen( $data );

	if ( $length < 4 )

		return false;

	if ( ':' !== $data[1] )

		return false;

	$lastc = $data[$length-1];

	if ( ';' !== $lastc && '}' !== $lastc )

		return false;

	$token = $data[0];

	switch ( $token ) {

		case 's' :

			if ( '"' !== $data[$length-2] )

				return false;

		case 'a' :

		case 'O' :

			return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data );

		case 'b' :

		case 'i' :

		case 'd' :

			return (bool) preg_match( "/^{$token}:[0-9.E-]+;\$/", $data );

	}

	return false;

}



/**

 * Check whether serialized data is of string type.

 *

 * @since 2.0.5

 *

 * @param mixed $data Serialized data

 * @return bool False if not a serialized string, true if it is.

 */

function is_serialized_string( $data ) {

	// if it isn't a string, it isn't a serialized string

	if ( !is_string( $data ) )

		return false;

	$data = trim( $data );

	$length = strlen( $data );

	if ( $length < 4 )

		return false;

	elseif ( ':' !== $data[1] )

		return false;

	elseif ( ';' !== $data[$length-1] )

		return false;

	elseif ( $data[0] !== 's' )

		return false;

	elseif ( '"' !== $data[$length-2] )

		return false;

	else

		return true;

}



/**

 * Retrieve option value based on name of option.

 *

 * If the option does not exist or does not have a value, then the return value

 * will be false. This is useful to check whether you need to install an option

 * and is commonly used during installation of plugin options and to test

 * whether upgrading is required.

 *

 * If the option was serialized then it will be unserialized when it is returned.

 *

 * @since 1.5.0

 * @package WordPress

 * @subpackage Option

 * @uses apply_filters() Calls 'pre_option_$option' before checking the option.

 * 	Any value other than false will "short-circuit" the retrieval of the option

 *	and return the returned value. You should not try to override special options,

 * 	but you will not be prevented from doing so.

 * @uses apply_filters() Calls 'option_$option', after checking the option, with

 * 	the option value.

 *

 * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.

 * @return mixed Value set for the option.

 */

function get_option( $option, $default = false ) {

	global $wpdb;



	// Allow plugins to short-circuit options.

	$pre = apply_filters( 'pre_option_' . $option, false );

	if ( false !== $pre )

		return $pre;



	$option = trim($option);

	if ( empty($option) )

		return false;



	if ( defined( 'WP_SETUP_CONFIG' ) )

		return false;



	if ( ! defined( 'WP_INSTALLING' ) ) {

		// prevent non-existent options from triggering multiple queries

		$notoptions = wp_cache_get( 'notoptions', 'options' );

		if ( isset( $notoptions[$option] ) )

			return $default;



		$alloptions = wp_load_alloptions();



		if ( isset( $alloptions[$option] ) ) {

			$value = $alloptions[$option];

		} else {

			$value = wp_cache_get( $option, 'options' );



			if ( false === $value ) {

				$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );



				// Has to be get_row instead of get_var because of funkiness with 0, false, null values

				if ( is_object( $row ) ) {

					$value = $row->option_value;

					wp_cache_add( $option, $value, 'options' );

				} else { // option does not exist, so we must cache its non-existence

					$notoptions[$option] = true;

					wp_cache_set( 'notoptions', $notoptions, 'options' );

					return $default;

				}

			}

		}

	} else {

		$suppress = $wpdb->suppress_errors();

		$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );

		$wpdb->suppress_errors( $suppress );

		if ( is_object( $row ) )

			$value = $row->option_value;

		else

			return $default;

	}



	// If home is not set use siteurl.

	if ( 'home' == $option && '' == $value )

		return get_option( 'siteurl' );



	if ( in_array( $option, array('siteurl', 'home', 'category_base', 'tag_base') ) )

		$value = untrailingslashit( $value );



	return apply_filters( 'option_' . $option, maybe_unserialize( $value ) );

}



/**

 * Protect WordPress special option from being modified.

 *

 * Will die if $option is in protected list. Protected options are 'alloptions'

 * and 'notoptions' options.

 *

 * @since 2.2.0

 * @package WordPress

 * @subpackage Option

 *

 * @param string $option Option name.

 */

function wp_protect_special_option( $option ) {

	$protected = array( 'alloptions', 'notoptions' );

	if ( in_array( $option, $protected ) )

		wp_die( sprintf( __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) );

}



/**

 * Print option value after sanitizing for forms.

 *

 * @uses attr Sanitizes value.

 * @since 1.5.0

 * @package WordPress

 * @subpackage Option

 *

 * @param string $option Option name.

 */

function form_option( $option ) {

	echo esc_attr( get_option( $option ) );

}



/**

 * Loads and caches all autoloaded options, if available or all options.

 *

 * @since 2.2.0

 * @package WordPress

 * @subpackage Option

 *

 * @return array List of all options.

 */

function wp_load_alloptions() {

	global $wpdb;



	if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )

		$alloptions = wp_cache_get( 'alloptions', 'options' );

	else

		$alloptions = false;



	if ( !$alloptions ) {

		$suppress = $wpdb->suppress_errors();

		if ( !$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) )

			$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" );

		$wpdb->suppress_errors($suppress);

		$alloptions = array();

		foreach ( (array) $alloptions_db as $o ) {

			$alloptions[$o->option_name] = $o->option_value;

		}

		if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )

			wp_cache_add( 'alloptions', $alloptions, 'options' );

	}



	return $alloptions;

}



/**

 * Loads and caches certain often requested site options if is_multisite() and a peristent cache is not being used.

 *

 * @since 3.0.0

 * @package WordPress

 * @subpackage Option

 *

 * @param int $site_id Optional site ID for which to query the options. Defaults to the current site.

 */

function wp_load_core_site_options( $site_id = null ) {

	global $wpdb, $_wp_using_ext_object_cache;



	if ( !is_multisite() || $_wp_using_ext_object_cache || defined( 'WP_INSTALLING' ) )

		return;



	if ( empty($site_id) )

		$site_id = $wpdb->siteid;



	$core_options = array('site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled' );



	$core_options_in = "'" . implode("', '", $core_options) . "'";

	$options = $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $site_id) );



	foreach ( $options as $option ) {

		$key = $option->meta_key;

		$cache_key = "{$site_id}:$key";

		$option->meta_value = maybe_unserialize( $option->meta_value );



		wp_cache_set( $cache_key, $option->meta_value, 'site-options' );

	}

}



/**

 * Update the value of an option that was already added.

 *

 * You do not need to serialize values. If the value needs to be serialized, then

 * it will be serialized before it is inserted into the database. Remember,

 * resources can not be serialized or added as an option.

 *

 * If the option does not exist, then the option will be added with the option

 * value, but you will not be able to set whether it is autoloaded. If you want

 * to set whether an option is autoloaded, then you need to use the add_option().

 *

 * @since 1.0.0

 * @package WordPress

 * @subpackage Option

 *

 * @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the

 * 	option value to be stored.

 * @uses do_action() Calls 'update_option' hook before updating the option.

 * @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success.

 *

 * @param string $option Option name. Expected to not be SQL-escaped.

 * @param mixed $newvalue Option value. Expected to not be SQL-escaped.

 * @return bool False if value was not updated and true if value was updated.

 */

function update_option( $option, $newvalue ) {

	global $wpdb;



	$option = trim($option);

	if ( empty($option) )

		return false;



	wp_protect_special_option( $option );



	if ( is_object($newvalue) )

		$newvalue = clone $newvalue;



	$newvalue = sanitize_option( $option, $newvalue );

	$oldvalue = get_option( $option );

	$newvalue = apply_filters( 'pre_update_option_' . $option, $newvalue, $oldvalue );



	// If the new and old values are the same, no need to update.

	if ( $newvalue === $oldvalue )

		return false;



	if ( false === $oldvalue )

		return add_option( $option, $newvalue );



	$notoptions = wp_cache_get( 'notoptions', 'options' );

	if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {

		unset( $notoptions[$option] );

		wp_cache_set( 'notoptions', $notoptions, 'options' );

	}



	$_newvalue = $newvalue;

	$newvalue = maybe_serialize( $newvalue );



	do_action( 'update_option', $option, $oldvalue, $_newvalue );

	if ( ! defined( 'WP_INSTALLING' ) ) {

		$alloptions = wp_load_alloptions();

		if ( isset( $alloptions[$option] ) ) {

			$alloptions[$option] = $_newvalue;

			wp_cache_set( 'alloptions', $alloptions, 'options' );

		} else {

			wp_cache_set( $option, $_newvalue, 'options' );

		}

	}



	$result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) );



	if ( $result ) {

		do_action( "update_option_{$option}", $oldvalue, $_newvalue );

		do_action( 'updated_option', $option, $oldvalue, $_newvalue );

		return true;

	}

	return false;

}



/**

 * Add a new option.

 *

 * You do not need to serialize values. If the value needs to be serialized, then

 * it will be serialized before it is inserted into the database. Remember,

 * resources can not be serialized or added as an option.

 *

 * You can create options without values and then add values later. Does not

 * check whether the option has already been added, but does check that you

 * aren't adding a protected WordPress option. Care should be taken to not name

 * options the same as the ones which are protected and to not add options

 * that were already added.

 *

 * @package WordPress

 * @subpackage Option

 * @since 1.0.0

 *

 * @uses do_action() Calls 'add_option' hook before adding the option.

 * @uses do_action() Calls 'add_option_$option' and 'added_option' hooks on success.

 *

 * @param string $option Name of option to add. Expected to not be SQL-escaped.

 * @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.

 * @param mixed $deprecated Optional. Description. Not used anymore.

 * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up.

 * @return null returns when finished.

 */

function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {

	global $wpdb;



	if ( !empty( $deprecated ) )

		_deprecated_argument( __FUNCTION__, '2.3' );



	$option = trim($option);

	if ( empty($option) )

		return false;



	wp_protect_special_option( $option );



	if ( is_object($value) )

		$value = clone $value;



	$value = sanitize_option( $option, $value );



	// Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query

	$notoptions = wp_cache_get( 'notoptions', 'options' );

	if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) )

		if ( false !== get_option( $option ) )

			return;



	$_value = $value;

	$value = maybe_serialize( $value );

	$autoload = ( 'no' === $autoload ) ? 'no' : 'yes';

	do_action( 'add_option', $option, $_value );

	if ( ! defined( 'WP_INSTALLING' ) ) {

		if ( 'yes' == $autoload ) {

			$alloptions = wp_load_alloptions();

			$alloptions[$option] = $value;

			wp_cache_set( 'alloptions', $alloptions, 'options' );

		} else {

			wp_cache_set( $option, $value, 'options' );

		}

	}



	// This option exists now

	$notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh

	if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {

		unset( $notoptions[$option] );

		wp_cache_set( 'notoptions', $notoptions, 'options' );

	}



	$result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $value, $autoload ) );



	if ( $result ) {

		do_action( "add_option_{$option}", $option, $_value );

		do_action( 'added_option', $option, $_value );

		return true;

	}

	return false;

}



/**

 * Removes option by name. Prevents removal of protected WordPress options.

 *

 * @package WordPress

 * @subpackage Option

 * @since 1.2.0

 *

 * @uses do_action() Calls 'delete_option' hook before option is deleted.

 * @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success.

 *

 * @param string $option Name of option to remove. Expected to not be SQL-escaped.

 * @return bool True, if option is successfully deleted. False on failure.

 */

function delete_option( $option ) {

	global $wpdb;



	wp_protect_special_option( $option );



	// Get the ID, if no ID then return

	$row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) );

	if ( is_null( $row ) )

		return false;

	do_action( 'delete_option', $option );

	$result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) );

	if ( ! defined( 'WP_INSTALLING' ) ) {

		if ( 'yes' == $row->autoload ) {

			$alloptions = wp_load_alloptions();

			if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {

				unset( $alloptions[$option] );

				wp_cache_set( 'alloptions', $alloptions, 'options' );

			}

		} else {

			wp_cache_delete( $option, 'options' );

		}

	}

	if ( $result ) {

		do_action( "delete_option_$option", $option );

		do_action( 'deleted_option', $option );

		return true;

	}

	return false;

}



/**

 * Delete a transient

 *

 * @since 2.8.0

 * @package WordPress

 * @subpackage Transient

 *

 * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.

 * @uses do_action() Calls 'deleted_transient' hook on success.

 *

 * @param string $transient Transient name. Expected to not be SQL-escaped.

 * @return bool true if successful, false otherwise

 */

function delete_transient( $transient ) {

	global $_wp_using_ext_object_cache;



	do_action( 'delete_transient_' . $transient, $transient );



	if ( $_wp_using_ext_object_cache ) {

		$result = wp_cache_delete( $transient, 'transient' );

	} else {

		$option_timeout = '_transient_timeout_' . $transient;

		$option = '_transient_' . $transient;

		$result = delete_option( $option );

		if ( $result )

			delete_option( $option_timeout );

	}



	if ( $result )

		do_action( 'deleted_transient', $transient );

	return $result;

}



/**

 * Get the value of a transient

 *

 * If the transient does not exist or does not have a value, then the return value

 * will be false.

 *

 * @uses apply_filters() Calls 'pre_transient_$transient' hook before checking the transient.

 * 	Any value other than false will "short-circuit" the retrieval of the transient

 *	and return the returned value.

 * @uses apply_filters() Calls 'transient_$option' hook, after checking the transient, with

 * 	the transient value.

 *

 * @since 2.8.0

 * @package WordPress

 * @subpackage Transient

 *

 * @param string $transient Transient name. Expected to not be SQL-escaped

 * @return mixed Value of transient

 */

function get_transient( $transient ) {

	global $_wp_using_ext_object_cache;



	$pre = apply_filters( 'pre_transient_' . $transient, false );

	if ( false !== $pre )

		return $pre;



	if ( $_wp_using_ext_object_cache ) {

		$value = wp_cache_get( $transient, 'transient' );

	} else {

		$transient_option = '_transient_' . $transient;

		if ( ! defined( 'WP_INSTALLING' ) ) {

			// If option is not in alloptions, it is not autoloaded and thus has a timeout

			$alloptions = wp_load_alloptions();

			if ( !isset( $alloptions[$transient_option] ) ) {

				$transient_timeout = '_transient_timeout_' . $transient;

				if ( get_option( $transient_timeout ) < time() ) {

					delete_option( $transient_option  );

					delete_option( $transient_timeout );

					return false;

				}

			}

		}



		$value = get_option( $transient_option );

	}



	return apply_filters( 'transient_' . $transient, $value );

}



/**

 * Set/update the value of a transient

 *

 * You do not need to serialize values. If the value needs to be serialized, then

 * it will be serialized before it is set.

 *

 * @since 2.8.0

 * @package WordPress

 * @subpackage Transient

 *

 * @uses apply_filters() Calls 'pre_set_transient_$transient' hook to allow overwriting the

 * 	transient value to be stored.

 * @uses do_action() Calls 'set_transient_$transient' and 'setted_transient' hooks on success.

 *

 * @param string $transient Transient name. Expected to not be SQL-escaped.

 * @param mixed $value Transient value. Expected to not be SQL-escaped.

 * @param int $expiration Time until expiration in seconds, default 0

 * @return bool False if value was not set and true if value was set.

 */

function set_transient( $transient, $value, $expiration = 0 ) {

	global $_wp_using_ext_object_cache;



	$value = apply_filters( 'pre_set_transient_' . $transient, $value );



	if ( $_wp_using_ext_object_cache ) {

		$result = wp_cache_set( $transient, $value, 'transient', $expiration );

	} else {

		$transient_timeout = '_transient_timeout_' . $transient;

		$transient = '_transient_' . $transient;

		if ( false === get_option( $transient ) ) {

			$autoload = 'yes';

			if ( $expiration ) {

				$autoload = 'no';

				add_option( $transient_timeout, time() + $expiration, '', 'no' );

			}

			$result = add_option( $transient, $value, '', $autoload );

		} else {

			if ( $expiration )

				update_option( $transient_timeout, time() + $expiration );

			$result = update_option( $transient, $value );

		}

	}

	if ( $result ) {

		do_action( 'set_transient_' . $transient );

		do_action( 'setted_transient', $transient );

	}

	return $result;

}



/**

 * Saves and restores user interface settings stored in a cookie.

 *

 * Checks if the current user-settings cookie is updated and stores it. When no

 * cookie exists (different browser used), adds the last saved cookie restoring

 * the settings.

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.7.0

 */

function wp_user_settings() {



	if ( ! is_admin() )

		return;



	if ( defined('DOING_AJAX') )

		return;



	if ( ! $user = wp_get_current_user() )

		return;



	$settings = get_user_option( 'user-settings', $user->ID );



	if ( isset( $_COOKIE['wp-settings-' . $user->ID] ) ) {

		$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );



		if ( ! empty( $cookie ) && strpos( $cookie, '=' ) ) {

			if ( $cookie == $settings )

				return;



			$last_time = (int) get_user_option( 'user-settings-time', $user->ID );

			$saved = isset( $_COOKIE['wp-settings-time-' . $user->ID]) ? preg_replace( '/[^0-9]/', '', $_COOKIE['wp-settings-time-' . $user->ID] ) : 0;



			if ( $saved > $last_time ) {

				update_user_option( $user->ID, 'user-settings', $cookie, false );

				update_user_option( $user->ID, 'user-settings-time', time() - 5, false );

				return;

			}

		}

	}



	setcookie( 'wp-settings-' . $user->ID, $settings, time() + 31536000, SITECOOKIEPATH );

	setcookie( 'wp-settings-time-' . $user->ID, time(), time() + 31536000, SITECOOKIEPATH );

	$_COOKIE['wp-settings-' . $user->ID] = $settings;

}



/**

 * Retrieve user interface setting value based on setting name.

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.7.0

 *

 * @param string $name The name of the setting.

 * @param string $default Optional default value to return when $name is not set.

 * @return mixed the last saved user setting or the default value/false if it doesn't exist.

 */

function get_user_setting( $name, $default = false ) {



	$all = get_all_user_settings();



	return isset($all[$name]) ? $all[$name] : $default;

}



/**

 * Add or update user interface setting.

 *

 * Both $name and $value can contain only ASCII letters, numbers and underscores.

 * This function has to be used before any output has started as it calls setcookie().

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.8.0

 *

 * @param string $name The name of the setting.

 * @param string $value The value for the setting.

 * @return bool true if set successfully/false if not.

 */

function set_user_setting( $name, $value ) {



	if ( headers_sent() )

		return false;



	$all = get_all_user_settings();

	$name = preg_replace( '/[^A-Za-z0-9_]+/', '', $name );



	if ( empty($name) )

		return false;



	$all[$name] = $value;



	return wp_set_all_user_settings($all);

}



/**

 * Delete user interface settings.

 *

 * Deleting settings would reset them to the defaults.

 * This function has to be used before any output has started as it calls setcookie().

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.7.0

 *

 * @param mixed $names The name or array of names of the setting to be deleted.

 * @return bool true if deleted successfully/false if not.

 */

function delete_user_setting( $names ) {



	if ( headers_sent() )

		return false;



	$all = get_all_user_settings();

	$names = (array) $names;



	foreach ( $names as $name ) {

		if ( isset($all[$name]) ) {

			unset($all[$name]);

			$deleted = true;

		}

	}



	if ( isset($deleted) )

		return wp_set_all_user_settings($all);



	return false;

}



/**

 * Retrieve all user interface settings.

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.7.0

 *

 * @return array the last saved user settings or empty array.

 */

function get_all_user_settings() {

	global $_updated_user_settings;



	if ( ! $user = wp_get_current_user() )

		return array();



	if ( isset($_updated_user_settings) && is_array($_updated_user_settings) )

		return $_updated_user_settings;



	$all = array();

	if ( isset($_COOKIE['wp-settings-' . $user->ID]) ) {

		$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );



		if ( $cookie && strpos($cookie, '=') ) // the '=' cannot be 1st char

			parse_str($cookie, $all);



	} else {

		$option = get_user_option('user-settings', $user->ID);

		if ( $option && is_string($option) )

			parse_str( $option, $all );

	}



	return $all;

}



/**

 * Private. Set all user interface settings.

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.8.0

 *

 * @param unknown $all

 * @return bool

 */

function wp_set_all_user_settings($all) {

	global $_updated_user_settings;



	if ( ! $user = wp_get_current_user() )

		return false;



	$_updated_user_settings = $all;

	$settings = '';

	foreach ( $all as $k => $v ) {

		$v = preg_replace( '/[^A-Za-z0-9_]+/', '', $v );

		$settings .= $k . '=' . $v . '&';

	}



	$settings = rtrim($settings, '&');



	update_user_option( $user->ID, 'user-settings', $settings, false );

	update_user_option( $user->ID, 'user-settings-time', time(), false );



	return true;

}



/**

 * Delete the user settings of the current user.

 *

 * @package WordPress

 * @subpackage Option

 * @since 2.7.0

 */

function delete_all_user_settings() {

	if ( ! $user = wp_get_current_user() )

		return;



	update_user_option( $user->ID, 'user-settings', '', false );

	setcookie('wp-settings-' . $user->ID, ' ', time() - 31536000, SITECOOKIEPATH);

}



/**

 * Serialize data, if needed.

 *

 * @since 2.0.5

 *

 * @param mixed $data Data that might be serialized.

 * @return mixed A scalar data

 */

function maybe_serialize( $data ) {

	if ( is_array( $data ) || is_object( $data ) )

		return serialize( $data );



	if ( is_serialized( $data ) )

		return serialize( $data );



	return $data;

}



/**

 * Retrieve post title from XMLRPC XML.

 *

 * If the title element is not part of the XML, then the default post title from

 * the $post_default_title will be used instead.

 *

 * @package WordPress

 * @subpackage XMLRPC

 * @since 0.71

 *

 * @global string $post_default_title Default XMLRPC post title.

 *

 * @param string $content XMLRPC XML Request content

 * @return string Post title

 */

function xmlrpc_getposttitle( $content ) {

	global $post_default_title;

	if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {

		$post_title = $matchtitle[1];

	} else {

		$post_title = $post_default_title;

	}

	return $post_title;

}



/**

 * Retrieve the post category or categories from XMLRPC XML.

 *

 * If the category element is not found, then the default post category will be

 * used. The return type then would be what $post_default_category. If the

 * category is found, then it will always be an array.

 *

 * @package WordPress

 * @subpackage XMLRPC

 * @since 0.71

 *

 * @global string $post_default_category Default XMLRPC post category.

 *

 * @param string $content XMLRPC XML Request content

 * @return string|array List of categories or category name.

 */

function xmlrpc_getpostcategory( $content ) {

	global $post_default_category;

	if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) {

		$post_category = trim( $matchcat[1], ',' );

		$post_category = explode( ',', $post_category );

	} else {

		$post_category = $post_default_category;

	}

	return $post_category;

}



/**

 * XMLRPC XML content without title and category elements.

 *

 * @package WordPress

 * @subpackage XMLRPC

 * @since 0.71

 *

 * @param string $content XMLRPC XML Request content

 * @return string XMLRPC XML Request content without title and category elements.

 */

function xmlrpc_removepostdata( $content ) {

	$content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content );

	$content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content );

	$content = trim( $content );

	return $content;

}



/**

 * Open the file handle for debugging.

 *

 * This function is used for XMLRPC feature, but it is general purpose enough

 * to be used in anywhere.

 *

 * @see fopen() for mode options.

 * @package WordPress

 * @subpackage Debug

 * @since 0.71

 * @uses $debug Used for whether debugging is enabled.

 *

 * @param string $filename File path to debug file.

 * @param string $mode Same as fopen() mode parameter.

 * @return bool|resource File handle. False on failure.

 */

function debug_fopen( $filename, $mode ) {

	global $debug;

	if ( 1 == $debug ) {

		$fp = fopen( $filename, $mode );

		return $fp;

	} else {

		return false;

	}

}



/**

 * Write contents to the file used for debugging.

 *

 * Technically, this can be used to write to any file handle when the global

 * $debug is set to 1 or true.

 *

 * @package WordPress

 * @subpackage Debug

 * @since 0.71

 * @uses $debug Used for whether debugging is enabled.

 *

 * @param resource $fp File handle for debugging file.

 * @param string $string Content to write to debug file.

 */

function debug_fwrite( $fp, $string ) {

	global $debug;

	if ( 1 == $debug )

		fwrite( $fp, $string );

}



/**

 * Close the debugging file handle.

 *

 * Technically, this can be used to close any file handle when the global $debug

 * is set to 1 or true.

 *

 * @package WordPress

 * @subpackage Debug

 * @since 0.71

 * @uses $debug Used for whether debugging is enabled.

 *

 * @param resource $fp Debug File handle.

 */

function debug_fclose( $fp ) {

	global $debug;

	if ( 1 == $debug )

		fclose( $fp );

}



/**

 * Check content for video and audio links to add as enclosures.

 *

 * Will not add enclosures that have already been added and will

 * remove enclosures that are no longer in the post. This is called as

 * pingbacks and trackbacks.

 *

 * @package WordPress

 * @since 1.5.0

 *

 * @uses $wpdb

 *

 * @param string $content Post Content

 * @param int $post_ID Post ID

 */

function do_enclose( $content, $post_ID ) {

	global $wpdb;



	//TODO: Tidy this ghetto code up and make the debug code optional

	include_once( ABSPATH . WPINC . '/class-IXR.php' );



	$log = debug_fopen( ABSPATH . 'enclosures.log', 'a' );

	$post_links = array();

	debug_fwrite( $log, 'BEGIN ' . date( 'YmdHis', time() ) . "\n" );



	$pung = get_enclosed( $post_ID );



	$ltrs = '\w';

	$gunk = '/#~:.?+=&%@!\-';

	$punc = '.:?\-';

	$any = $ltrs . $gunk . $punc;



	preg_match_all( "{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp );



	debug_fwrite( $log, 'Post contents:' );

	debug_fwrite( $log, $content . "\n" );



	foreach ( $pung as $link_test ) {

		if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post

			$mid = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $link_test ) . '%') );

			do_action( 'delete_postmeta', $mid );

			$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN(%s)", implode( ',', $mid ) ) );

			do_action( 'deleted_postmeta', $mid );

		}

	}



	foreach ( (array) $post_links_temp[0] as $link_test ) {

		if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already

			$test = @parse_url( $link_test );

			if ( false === $test )

				continue;

			if ( isset( $test['query'] ) )

				$post_links[] = $link_test;

			elseif ( isset($test['path']) && ( $test['path'] != '/' ) &&  ($test['path'] != '' ) )

				$post_links[] = $link_test;

		}

	}



	foreach ( (array) $post_links as $url ) {

		if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $url ) . '%' ) ) ) {



			if ( $headers = wp_get_http_headers( $url) ) {

				$len = (int) $headers['content-length'];

				$type = $headers['content-type'];

				$allowed_types = array( 'video', 'audio' );



				// Check to see if we can figure out the mime type from

				// the extension

				$url_parts = @parse_url( $url );

				if ( false !== $url_parts ) {

					$extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION );

					if ( !empty( $extension ) ) {

						foreach ( get_allowed_mime_types( ) as $exts => $mime ) {

							if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {

								$type = $mime;

								break;

							}

						}

					}

				}



				if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {

					$meta_value = "$url\n$len\n$type\n";

					$wpdb->insert($wpdb->postmeta, array('post_id' => $post_ID, 'meta_key' => 'enclosure', 'meta_value' => $meta_value) );

					do_action( 'added_postmeta', $wpdb->insert_id, $post_ID, 'enclosure', $meta_value );

				}

			}

		}

	}

}



/**

 * Perform a HTTP HEAD or GET request.

 *

 * If $file_path is a writable filename, this will do a GET request and write

 * the file to that path.

 *

 * @since 2.5.0

 *

 * @param string $url URL to fetch.

 * @param string|bool $file_path Optional. File path to write request to.

 * @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false.

 * @return bool|string False on failure and string of headers if HEAD request.

 */

function wp_get_http( $url, $file_path = false, $red = 1 ) {

	@set_time_limit( 60 );



	if ( $red > 5 )

		return false;



	$options = array();

	$options['redirection'] = 5;



	if ( false == $file_path )

		$options['method'] = 'HEAD';

	else

		$options['method'] = 'GET';



	$response = wp_remote_request($url, $options);



	if ( is_wp_error( $response ) )

		return false;



	$headers = wp_remote_retrieve_headers( $response );

	$headers['response'] = wp_remote_retrieve_response_code( $response );



	// WP_HTTP no longer follows redirects for HEAD requests.

	if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {

		return wp_get_http( $headers['location'], $file_path, ++$red );

	}



	if ( false == $file_path )

		return $headers;



	// GET request - write it to the supplied filename

	$out_fp = fopen($file_path, 'w');

	if ( !$out_fp )

		return $headers;



	fwrite( $out_fp,  wp_remote_retrieve_body( $response ) );

	fclose($out_fp);

	clearstatcache();



	return $headers;

}



/**

 * Retrieve HTTP Headers from URL.

 *

 * @since 1.5.1

 *

 * @param string $url

 * @param bool $deprecated Not Used.

 * @return bool|string False on failure, headers on success.

 */

function wp_get_http_headers( $url, $deprecated = false ) {

	if ( !empty( $deprecated ) )

		_deprecated_argument( __FUNCTION__, '2.7' );



	$response = wp_remote_head( $url );



	if ( is_wp_error( $response ) )

		return false;



	return wp_remote_retrieve_headers( $response );

}



/**

 * Whether today is a new day.

 *

 * @since 0.71

 * @uses $day Today

 * @uses $previousday Previous day

 *

 * @return int 1 when new day, 0 if not a new day.

 */

function is_new_day() {

	global $currentday, $previousday;

	if ( $currentday != $previousday )

		return 1;

	else

		return 0;

}



/**

 * Build URL query based on an associative and, or indexed array.

 *

 * This is a convenient function for easily building url queries. It sets the

 * separator to '&' and uses _http_build_query() function.

 *

 * @see _http_build_query() Used to build the query

 * @link http://us2.php.net/manual/en/function.http-build-query.php more on what

 *		http_build_query() does.

 *

 * @since 2.3.0

 *

 * @param array $data URL-encode key/value pairs.

 * @return string URL encoded string

 */

function build_query( $data ) {

	return _http_build_query( $data, null, '&', '', false );

}



// from php.net (modified by Mark Jaquith to behave like the native PHP5 function)

function _http_build_query($data, $prefix=null, $sep=null, $key='', $urlencode=true) {

	$ret = array();



	foreach ( (array) $data as $k => $v ) {

		if ( $urlencode)

			$k = urlencode($k);

		if ( is_int($k) && $prefix != null )

			$k = $prefix.$k;

		if ( !empty($key) )

			$k = $key . '%5B' . $k . '%5D';

		if ( $v === NULL )

			continue;

		elseif ( $v === FALSE )

			$v = '0';



		if ( is_array($v) || is_object($v) )

			array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));

		elseif ( $urlencode )

			array_push($ret, $k.'='.urlencode($v));

		else

			array_push($ret, $k.'='.$v);

	}



	if ( NULL === $sep )

		$sep = ini_get('arg_separator.output');



	return implode($sep, $ret);

}



/**

 * Retrieve a modified URL query string.

 *

 * You can rebuild the URL and append a new query variable to the URL query by

 * using this function. You can also retrieve the full URL with query data.

 *

 * Adding a single key & value or an associative array. Setting a key value to

 * emptystring removes the key. Omitting oldquery_or_uri uses the $_SERVER

 * value.

 *

 * @since 1.5.0

 *

 * @param mixed $param1 Either newkey or an associative_array

 * @param mixed $param2 Either newvalue or oldquery or uri

 * @param mixed $param3 Optional. Old query or uri

 * @return string New URL query string.

 */

function add_query_arg() {

	$ret = '';

	if ( is_array( func_get_arg(0) ) ) {

		if ( @func_num_args() < 2 || false === @func_get_arg( 1 ) )

			$uri = $_SERVER['REQUEST_URI'];

		else

			$uri = @func_get_arg( 1 );

	} else {

		if ( @func_num_args() < 3 || false === @func_get_arg( 2 ) )

			$uri = $_SERVER['REQUEST_URI'];

		else

			$uri = @func_get_arg( 2 );

	}



	if ( $frag = strstr( $uri, '#' ) )

		$uri = substr( $uri, 0, -strlen( $frag ) );

	else

		$frag = '';



	if ( preg_match( '|^https?://|i', $uri, $matches ) ) {

		$protocol = $matches[0];

		$uri = substr( $uri, strlen( $protocol ) );

	} else {

		$protocol = '';

	}



	if ( strpos( $uri, '?' ) !== false ) {

		$parts = explode( '?', $uri, 2 );

		if ( 1 == count( $parts ) ) {

			$base = '?';

			$query = $parts[0];

		} else {

			$base = $parts[0] . '?';

			$query = $parts[1];

		}

	} elseif ( !empty( $protocol ) || strpos( $uri, '=' ) === false ) {

		$base = $uri . '?';

		$query = '';

	} else {

		$base = '';

		$query = $uri;

	}



	wp_parse_str( $query, $qs );

	$qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string

	if ( is_array( func_get_arg( 0 ) ) ) {

		$kayvees = func_get_arg( 0 );

		$qs = array_merge( $qs, $kayvees );

	} else {

		$qs[func_get_arg( 0 )] = func_get_arg( 1 );

	}



	foreach ( (array) $qs as $k => $v ) {

		if ( $v === false )

			unset( $qs[$k] );

	}



	$ret = build_query( $qs );

	$ret = trim( $ret, '?' );

	$ret = preg_replace( '#=(&|$)#', '$1', $ret );

	$ret = $protocol . $base . $ret . $frag;

	$ret = rtrim( $ret, '?' );

	return $ret;

}



/**

 * Removes an item or list from the query string.

 *

 * @since 1.5.0

 *

 * @param string|array $key Query key or keys to remove.

 * @param bool $query When false uses the $_SERVER value.

 * @return string New URL query string.

 */

function remove_query_arg( $key, $query=false ) {

	if ( is_array( $key ) ) { // removing multiple keys

		foreach ( $key as $k )

			$query = add_query_arg( $k, false, $query );

		return $query;

	}

	return add_query_arg( $key, false, $query );

}



/**

 * Walks the array while sanitizing the contents.

 *

 * @since 0.71

 *

 * @param array $array Array to used to walk while sanitizing contents.

 * @return array Sanitized $array.

 */

function add_magic_quotes( $array ) {

	foreach ( (array) $array as $k => $v ) {

		if ( is_array( $v ) ) {

			$array[$k] = add_magic_quotes( $v );

		} else {

			$array[$k] = addslashes( $v );

		}

	}

	return $array;

}



/**

 * HTTP request for URI to retrieve content.

 *

 * @since 1.5.1

 * @uses wp_remote_get()

 *

 * @param string $uri URI/URL of web page to retrieve.

 * @return bool|string HTTP content. False on failure.

 */

function wp_remote_fopen( $uri ) {

	$parsed_url = @parse_url( $uri );



	if ( !$parsed_url || !is_array( $parsed_url ) )

		return false;



	$options = array();

	$options['timeout'] = 10;



	$response = wp_remote_get( $uri, $options );



	if ( is_wp_error( $response ) )

		return false;



	return wp_remote_retrieve_body( $response );

}



/**

 * Set up the WordPress query.

 *

 * @since 2.0.0

 *

 * @param string $query_vars Default WP_Query arguments.

 */

function wp( $query_vars = '' ) {

	global $wp, $wp_query, $wp_the_query;

	$wp->main( $query_vars );



	if ( !isset($wp_the_query) )

		$wp_the_query = $wp_query;

}



/**

 * Retrieve the description for the HTTP status.

 *

 * @since 2.3.0

 *

 * @param int $code HTTP status code.

 * @return string Empty string if not found, or description if found.

 */

function get_status_header_desc( $code ) {

	global $wp_header_to_desc;



	$code = absint( $code );



	if ( !isset( $wp_header_to_desc ) ) {

		$wp_header_to_desc = array(

			100 => 'Continue',

			101 => 'Switching Protocols',

			102 => 'Processing',



			200 => 'OK',

			201 => 'Created',

			202 => 'Accepted',

			203 => 'Non-Authoritative Information',

			204 => 'No Content',

			205 => 'Reset Content',

			206 => 'Partial Content',

			207 => 'Multi-Status',

			226 => 'IM Used',



			300 => 'Multiple Choices',

			301 => 'Moved Permanently',

			302 => 'Found',

			303 => 'See Other',

			304 => 'Not Modified',

			305 => 'Use Proxy',

			306 => 'Reserved',

			307 => 'Temporary Redirect',



			400 => 'B…