From 49c676be3a786f2699392a9061b228fdf76078ca Mon Sep 17 00:00:00 2001 From: Derek Jones Date: Tue, 11 Dec 2007 16:53:36 +0000 Subject: optimized reduce_multiples and strengthened type checking --- system/helpers/string_helper.php | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'system/helpers/string_helper.php') diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php index 470bce2eb..765e1648f 100644 --- a/system/helpers/string_helper.php +++ b/system/helpers/string_helper.php @@ -1 +1 @@ - $val) { $str[$key] = strip_slashes($val); } } else { $str = stripslashes($str); } return $str; } // ------------------------------------------------------------------------ /** * Strip Quotes * * Removes single and double quotes from a string * * @access public * @param string * @return string */ function strip_quotes($str) { return str_replace(array('"', "'"), '', $str); } // ------------------------------------------------------------------------ /** * Quotes to Entities * * Converts single and double quotes to entities * * @access public * @param string * @return string */ function quotes_to_entities($str) { return str_replace(array("\'","\"","'",'"'), array("'",""","'","""), $str); } // ------------------------------------------------------------------------ /** * Reduce Double Slashes * * Converts double slashes in a string to a single slash, * except those found in http:// * * http://www.some-site.com//index.php * * becomes: * * http://www.some-site.com/index.php * * @access public * @param string * @return string */ function reduce_double_slashes($str) { return preg_replace("#([^:])//+#", "\\1/", $str); } // ------------------------------------------------------------------------ /** * Reduce Multiples * * Reduces multiple instances of a particular character. Example: * * Fred, Bill,, Joe, Jimmy * * becomes: * * Fred, Bill, Joe, Jimmy * * @access public * @param string * @param string the character you wish to reduce * @param bool TRUE/FALSE - whether to trim the character from the beginning/end * @return string */ function reduce_multiples($str, $character = ',', $trim = FALSE) { $preg_chars = preg_quote($character, '#') . preg_quote($character, '#'); $str = preg_replace("#$preg_chars+#", $character, $str); if ($trim == TRUE) { $str = trim($str, $character); } return $str; } // ------------------------------------------------------------------------ /** * Create a Random String * * Useful for generating passwords or hashes. * * @access public * @param string type of random string. Options: alunum, numeric, nozero, unique * @param integer number of characters * @return string */ function random_string($type = 'alnum', $len = 8) { switch($type) { case 'alnum' : case 'numeric' : case 'nozero' : switch ($type) { 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' : return md5(uniqid(mt_rand())); break; } } // ------------------------------------------------------------------------ /** * Alternator * * Allows strings to be alternated. See docs... * * @access public * @param string (as many parameters as needed) * @return string */ function alternator() { static $i; if (func_num_args() == 0) { $i = 0; return ''; } $args = func_get_args(); return $args[($i++ % count($args))]; } // ------------------------------------------------------------------------ /** * Repeater function * * @access public * @param string * @param integer number of repeats * @return string */ function repeater($data, $num = 1) { return (($num > 0) ? str_repeat($data, $num) : ''); } ?> \ No newline at end of file + $val) { $str[$key] = strip_slashes($val); } } else { $str = stripslashes($str); } return $str; } // ------------------------------------------------------------------------ /** * Strip Quotes * * Removes single and double quotes from a string * * @access public * @param string * @return string */ function strip_quotes($str) { return str_replace(array('"', "'"), '', $str); } // ------------------------------------------------------------------------ /** * Quotes to Entities * * Converts single and double quotes to entities * * @access public * @param string * @return string */ function quotes_to_entities($str) { return str_replace(array("\'","\"","'",'"'), array("'",""","'","""), $str); } // ------------------------------------------------------------------------ /** * Reduce Double Slashes * * Converts double slashes in a string to a single slash, * except those found in http:// * * http://www.some-site.com//index.php * * becomes: * * http://www.some-site.com/index.php * * @access public * @param string * @return string */ function reduce_double_slashes($str) { return preg_replace("#([^:])//+#", "\\1/", $str); } // ------------------------------------------------------------------------ /** * Reduce Multiples * * Reduces multiple instances of a particular character. Example: * * Fred, Bill,, Joe, Jimmy * * becomes: * * Fred, Bill, Joe, Jimmy * * @access public * @param string * @param string the character you wish to reduce * @param bool TRUE/FALSE - whether to trim the character from the beginning/end * @return string */ function reduce_multiples($str, $character = ',', $trim = FALSE) { $str = preg_replace('#'.preg_quote($character, '#').'{2,}#', $character, $str); if ($trim === TRUE) { $str = trim($str, $character); } return $str; } // ------------------------------------------------------------------------ /** * Create a Random String * * Useful for generating passwords or hashes. * * @access public * @param string type of random string. Options: alunum, numeric, nozero, unique * @param integer number of characters * @return string */ function random_string($type = 'alnum', $len = 8) { switch($type) { case 'alnum' : case 'numeric' : case 'nozero' : switch ($type) { 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' : return md5(uniqid(mt_rand())); break; } } // ------------------------------------------------------------------------ /** * Alternator * * Allows strings to be alternated. See docs... * * @access public * @param string (as many parameters as needed) * @return string */ function alternator() { static $i; if (func_num_args() == 0) { $i = 0; return ''; } $args = func_get_args(); return $args[($i++ % count($args))]; } // ------------------------------------------------------------------------ /** * Repeater function * * @access public * @param string * @param integer number of repeats * @return string */ function repeater($data, $num = 1) { return (($num > 0) ? str_repeat($data, $num) : ''); } ?> \ No newline at end of file -- cgit v1.2.3-24-g4f1b