/php/lib/Gloo/Util.php

<?php

class Gloo_Util {

    static function base64Encrypt($token) {
        $token = base64_encode($token);
        $token = str_rot13($token);
        return $token ;

    }

    static function base64Decrypt($token) {
        $token = str_rot13($token);
        $token = base64_decode($token);
        return $token ;
    }
    
    static function getBase36GUID() {
        $baseId = rand() ;
        $token = base_convert($baseId * rand(), 10, 36);
        return $token ;
    }

    static function getMD5GUID() {
        $token = md5(uniqid(mt_rand(), true));
        return $token ;
    }

    static function array2nl($arr) {
        //lambda style function
        // Anonymous callback @see create_function() on php.net
        $str = array_reduce($arr, create_function('$a,$b', 'return $a."\n".$b ;'));
        return $str ;
    }

    static function stringify($var) {
        $buffer = '' ;
        //var_dump($var);
        if(is_object($var)) {
            $buffer = '{object='.$var->__toString().'}' ;
            return $buffer;
        }
        if(is_array($var)) {
            $buffer= '[array=' ;
            foreach($var as $elem) {
                $buffer = $buffer.self::stringify($elem).',';

            }
            $buffer .= ']';
            return $buffer;
        }

        return $var  ;
        
    }


    /**
     *
     * @param <type> $original - timestamp coming from mysql DB
     * @param <type> $format   - output format , defaults to dd mon yyyy
     * @return <type> the formatted date string
     *
     * @see also http://in2.php.net/strftime
     * @see also http://in2.php.net/manual/en/function.strtotime.php
     * PHP string time functions
     *
     */
    static function format_date($original,$format=Gloo_Constants::DDMONYYYY) {
        //@todo date time operations can be expensive, need to profile!
        if(!isset($original) || is_null($original) || empty($original)) {
            return '';
        }
        $dt = strftime($format, strtotime($original));
        return $dt ;

    }
    
    static function squeeze($input) {
        $input = preg_replace('/\s\s+/', ' ', $input);
        return $input ;
    }

    static function isAlphaNumeric($input) {
        //Allow spaces
        $input = preg_replace('/\s+/', '', $input);
        return ctype_alnum($input);
    }
    
    static function isEmpty($name,$value) {
        if(empty($value)) {
            $message = 'Bad input:: '.$name. ' is empty or null!';
            trigger_error($message,E_USER_ERROR);
        }
    }
    
    static function startsWith($Haystack, $Needle) {
        // Recommended version, using strpos
        return strpos($Haystack, $Needle) === 0;
    }

    static function convertBytesIntoKB($bytes) {
        //divide bytes by 1024
        $kb  = ceil(($bytes/1024.00));
        return $kb;

    }

    static function convertNameToFarmSiteDomain($name) {
        //convert incoming name to new farm site domain
        $DOT = '.' ;
        $config = Gloo_Config::getInstance();
        return $name.$DOT.$config->getFarmNewSiteDomain() ;
    }
}
?>