--- /dev/null
+<?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;
+ }
+ }
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * 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 */
\ No newline at end of file
projects / living-lab-site.git / blobdiff