yiicorecms /framework/web/helpers/CJavaScript.php

Language PHP Lines 121
MD5 Hash 6910f9fb3292d768b2798236bc8d09cc Estimated Cost $1,482 (why?)
Repository https://bitbucket.org/dinhtrung/yiicorecms/ View Raw File View Project SPDX
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
<?php
/**
 * CJavaScript helper class file.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.yiiframework.com/
 * @copyright Copyright &copy; 2008-2011 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

/**
 * CJavaScript is a helper class containing JavaScript-related handling functions.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id: CJavaScript.php 2799 2011-01-01 19:31:13Z qiang.xue $
 * @package system.web.helpers
 * @since 1.0
 */
class CJavaScript
{
	/**
	 * Quotes a javascript string.
	 * After processing, the string can be safely enclosed within a pair of
	 * quotation marks and serve as a javascript string.
	 * @param string $js string to be quoted
	 * @param boolean $forUrl whether this string is used as a URL
	 * @return string the quoted string
	 */
	public static function quote($js,$forUrl=false)
	{
		if($forUrl)
			return strtr($js,array('%'=>'%25',"\t"=>'\t',"\n"=>'\n',"\r"=>'\r','"'=>'\"','\''=>'\\\'','\\'=>'\\\\','</'=>'<\/'));
		else
			return strtr($js,array("\t"=>'\t',"\n"=>'\n',"\r"=>'\r','"'=>'\"','\''=>'\\\'','\\'=>'\\\\','</'=>'<\/'));
	}

	/**
	 * Encodes a PHP variable into javascript representation.
	 *
	 * Example:
	 * <pre>
	 * $options=array('key1'=>true,'key2'=>123,'key3'=>'value');
	 * echo CJavaScript::encode($options);
	 * // The following javascript code would be generated:
	 * // {'key1':true,'key2':123,'key3':'value'}
	 * </pre>
	 *
	 * For highly complex data structures use {@link jsonEncode} and {@link jsonDecode}
	 * to serialize and unserialize.
	 *
	 * @param mixed $value PHP variable to be encoded
	 * @return string the encoded string
	 */
	public static function encode($value)
	{
		if(is_string($value))
		{
			if(strpos($value,'js:')===0)
				return substr($value,3);
			else
				return "'".self::quote($value)."'";
		}
		else if($value===null)
			return 'null';
		else if(is_bool($value))
			return $value?'true':'false';
		else if(is_integer($value))
			return "$value";
		else if(is_float($value))
		{
			if($value===-INF)
				return 'Number.NEGATIVE_INFINITY';
			else if($value===INF)
				return 'Number.POSITIVE_INFINITY';
			else
				return rtrim(sprintf('%.16F',$value),'0');  // locale-independent representation
		}
		else if(is_object($value))
			return self::encode(get_object_vars($value));
		else if(is_array($value))
		{
			$es=array();
			if(($n=count($value))>0 && array_keys($value)!==range(0,$n-1))
			{
				foreach($value as $k=>$v)
					$es[]="'".self::quote($k)."':".self::encode($v);
				return '{'.implode(',',$es).'}';
			}
			else
			{
				foreach($value as $v)
					$es[]=self::encode($v);
				return '['.implode(',',$es).']';
			}
		}
		else
			return '';
	}

	/**
	 * Returns the JSON representation of the PHP data.
	 * @param mixed $data the data to be encoded
	 * @return string the JSON representation of the PHP data.
	 */
	public static function jsonEncode($data)
	{
		return CJSON::encode($data);
	}

	/**
	 * Decodes a JSON string.
	 * @param string $data the data to be decoded
	 * @param boolean $useArray whether to use associative array to represent object data
	 * @return mixed the decoded PHP data
	 */
	public static function jsonDecode($data,$useArray=true)
	{
		return CJSON::decode($data,$useArray);
	}
}
Back to Top