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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');/*** CodeIgniter** An open source application development framework for PHP 5.1.6 or newer** @package CodeIgniter* @author ExpressionEngine Dev Team* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.* @license http://codeigniter.com/user_guide/license.html* @link http://codeigniter.com* @since Version 1.0* @filesource*/// ------------------------------------------------------------------------/*** CodeIgniter String Helpers** @package CodeIgniter* @subpackage Helpers* @category Helpers* @author ExpressionEngine Dev Team* @link http://codeigniter.com/user_guide/helpers/string_helper.html*/// ------------------------------------------------------------------------/*** Trim Slashes** Removes any leading/trailing slashes from a string:** /this/that/theother/** becomes:** this/that/theother** @access public* @param string* @return string*/if ( ! function_exists('trim_slashes')){function trim_slashes($str){return trim($str, '/');}}// ------------------------------------------------------------------------/*** Strip Slashes** Removes slashes contained in a string or in an array** @access public* @param mixed string or array* @return mixed string or array*/if ( ! function_exists('strip_slashes')){function strip_slashes($str){if (is_array($str)){foreach ($str as $key => $val){$str[$key] = strip_slashes($val);}}else{$str = stripslashes($str);}return $str;}}// ------------------------------------------------------------------------/*** Strip Quotes** Removes single and double quotes from a string** @access public* @param string* @return string*/if ( ! function_exists('strip_quotes')){function strip_quotes($str){return str_replace(array('"', "'"), '', $str);}}// ------------------------------------------------------------------------/*** Quotes to Entities** Converts single and double quotes to entities** @access public* @param string* @return string*/if ( ! function_exists('quotes_to_entities')){function quotes_to_entities($str){return str_replace(array("\'","\"","'",'"'), array("'",""","'","""), $str);}}// ------------------------------------------------------------------------/*** Reduce Double Slashes** Converts double slashes in a string to a single slash,* except those found in http://** http://www.some-site.com//index.php** becomes:** http://www.some-site.com/index.php** @access public* @param string* @return string*/if ( ! function_exists('reduce_double_slashes')){function reduce_double_slashes($str){return preg_replace("#(^|[^:])//+#", "\\1/", $str);}}// ------------------------------------------------------------------------/*** Reduce Multiples** Reduces multiple instances of a particular character. Example:** Fred, Bill,, Joe, Jimmy** becomes:** Fred, Bill, Joe, Jimmy** @access public* @param string* @param string the character you wish to reduce* @param bool TRUE/FALSE - whether to trim the character from the beginning/end* @return string*/if ( ! function_exists('reduce_multiples')){function reduce_multiples($str, $character = ',', $trim = FALSE){$str = preg_replace('#'.preg_quote($character, '#').'{2,}#', $character, $str);if ($trim === TRUE){$str = trim($str, $character);}return $str;}}// ------------------------------------------------------------------------/*** Create a Random String** Useful for generating passwords or hashes.** @access public* @param string type of random string. basic, alpha, alunum, numeric, nozero, unique, md5, encrypt and sha1* @param integer number of characters* @return string*/if ( ! function_exists('random_string')){function random_string($type = 'alnum', $len = 8){switch($type){case 'basic' : return mt_rand();break;case 'alnum' :case 'numeric' :case 'nozero' :case 'alpha' :switch ($type){case 'alpha' : $pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';break;case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';break;case 'numeric' : $pool = '0123456789';break;case 'nozero' : $pool = '123456789';break;}$str = '';for ($i=0; $i < $len; $i++){$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);}return $str;break;case 'unique' :case 'md5' :return md5(uniqid(mt_rand()));break;case 'encrypt' :case 'sha1' :$CI =& get_instance();$CI->load->helper('security');return do_hash(uniqid(mt_rand(), TRUE), 'sha1');break;}}}// ------------------------------------------------------------------------/*** Add's _1 to a string or increment the ending number to allow _2, _3, etc** @param string $str required* @param string $separator What should the duplicate number be appended with* @param string $first Which number should be used for the first dupe increment* @return string*/function increment_string($str, $separator = '_', $first = 1){preg_match('/(.+)'.$separator.'([0-9]+)$/', $str, $match);return isset($match[2]) ? $match[1].$separator.($match[2] + 1) : $str.$separator.$first;}// ------------------------------------------------------------------------/*** Alternator** Allows strings to be alternated. See docs...** @access public* @param string (as many parameters as needed)* @return string*/if ( ! function_exists('alternator')){function alternator(){static $i;if (func_num_args() == 0){$i = 0;return '';}$args = func_get_args();return $args[($i++ % count($args))];}}// ------------------------------------------------------------------------/*** Repeater function** @access public* @param string* @param integer number of repeats* @return string*/if ( ! function_exists('repeater')){function repeater($data, $num = 1){return (($num > 0) ? str_repeat($data, $num) : '');}}/* End of file string_helper.php *//* Location: ./system/helpers/string_helper.php */