escape函数
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /** * js escape php 实现 * @param $string the sting want to be escaped * @param $in_encoding * @param $out_encoding */function escape($string, $in_encoding = 'UTF-8',$out_encoding = 'UCS-2') { $return = ''; if (function_exists('mb_get_info')) { for($x = 0; $x < mb_strlen ( $string, $in_encoding ); $x ++) { $str = mb_substr ( $string, $x, 1, $in_encoding ); if (strlen ( $str ) > 1) { // 多字节字符 $return .= '%u' . strtoupper ( bin2hex ( mb_convert_encoding ( $str, $out_encoding, $in_encoding ) ) ); } else { $return .= '%' . strtoupper ( bin2hex ( $str ) ); } } } return $return; } |
unescape代码：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | function unescape($str) { $ret = ''; $len = strlen($str); for ($i = 0; $i < $len; $i ++) { if ($str[$i] == '%' && $str[$i + 1] == 'u') { $val = hexdec(substr($str, $i + 2, 4)); if ($val < 0x7f) $ret .= chr($val); else if ($val < 0x800) $ret .= chr(0xc0 | ($val >> 6)) . chr(0x80 | ($val & 0x3f)); else $ret .= chr(0xe0 | ($val >> 12)) . chr(0x80 | (($val >> 6) & 0x3f)) . chr(0x80 | ($val & 0x3f)); $i += 5; } else if ($str[$i] == '%') { $ret .= urldecode(substr($str, $i, 3)); $i += 2; } else $ret .= $str[$i]; } return $ret; } |
