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<?php if (!function_exists('ldap_escape')) { echo "defining\n"; define('LDAP_ESCAPE_FILTER', 0x01); define('LDAP_ESCAPE_DN', 0x02); /** * @param string $subject The subject string * @param string $ignore Set of characters to leave untouched * @param int $flags Any combination of LDAP_ESCAPE_* flags to indicate the * set(s) of characters to escape. * @return string */ function ldap_escape($subject, $ignore = '', $flags = 0) { static $charMaps = array( LDAP_ESCAPE_FILTER => array('\\', '*', '(', ')', "\x00"), LDAP_ESCAPE_DN => array('\\', ',', '=', '+', '<', '>', ';', '"', '#'), ); // Pre-process the char maps on first call if (!isset($charMaps[0])) { $charMaps[0] = array(); for ($i = 0; $i < 256; $i++) { $charMaps[0][chr($i)] = sprintf('\\%02x', ord($i));; } for ($i = 0, $l = count($charMaps[LDAP_ESCAPE_FILTER]); $i < $l; $i++) { $chr = $charMaps[LDAP_ESCAPE_FILTER][$i]; unset($charMaps[LDAP_ESCAPE_FILTER][$i]); $charMaps[LDAP_ESCAPE_FILTER][$chr] = $charMaps[0][$chr]; } for ($i = 0, $l = count($charMaps[LDAP_ESCAPE_DN]); $i < $l; $i++) { $chr = $charMaps[LDAP_ESCAPE_DN][$i]; unset($charMaps[LDAP_ESCAPE_DN][$i]); $charMaps[LDAP_ESCAPE_DN][$chr] = $charMaps[0][$chr]; } } // Create the base char map to escape $flags = (int)$flags; $charMap = array(); if ($flags & LDAP_ESCAPE_FILTER) { $charMap += $charMaps[LDAP_ESCAPE_FILTER]; } if ($flags & LDAP_ESCAPE_DN) { $charMap += $charMaps[LDAP_ESCAPE_DN]; } if (!$charList) { $charMap = $charMaps[0]; } // Remove any chars to ignore from the list $ignore = (string)$ignore; for ($i = 0, $l = strlen($ignore); $i < $l; $i++) { unset($charMap[$ignore[$i]]); } // Do the main replacement $result = strtr($subject, $charMap); // Encode leading/trailing spaces if LDAP_ESCAPE_DN is passed if ($flags & LDAP_ESCAPE_DN) { if ($result[0] === ' ') { $result = '\\20' . substr($result, 1); } if ($result[strlen($result) - 1] === ' ') { $result = substr($result, 0, -1) . '\\20'; } } return $result; } } $subject = "(one \\f #)" echo ldap_escape($subject) . "\n"; echo ldap_escape($subject, '', LDAP_ESCAPE_DN) . "\n"; echo ldap_escape($subject, '', LDAP_ESCAPE_FILTER) . "\n"; echo ldap_escape($subject, '#', LDAP_ESCAPE_DN) . "\n"; echo ldap_escape($subject, '(', LDAP_ESCAPE_FILTER) . "\n";