我使用这个模式：
$line = preg_replace('#('w)('w)#e', "chr(hexdec('$1$2'))", $line);
但这对这个字符串很有用："c8d3e320c7e1e1f8e520c7e1d1cde3e420c7e1d1cdede3fe"
我想转换字符串，例如：-"''c8''d3''e3''20''c7''e1''e1''f8''e5''20''c7''e1''d1''cd''e3''e4''20''c7''e1''d1''cd''ed''e3''fe"
这意味着任何以''开头的字符如何改变模式？
谢谢+Akam
此模式解决了问题
$line = preg_replace("#''''('w)('w)#e", "chr(hexdec('$1$2'))", $line);
$line = "''c8''d3''e3''20''c7''e1''e1''f8''e5''20''c7''e1''d1''cd''e3''e4''20''c7''e1''d1''cd''ed''e3''fe";
echo preg_replace("#'''('w)('w)#e", "chr(hexdec('$1$2'))", $line);
//test
preg_match_all("#'''('w)('w)#e", $line, $out);
echo '<pre>';
print_r($out);
[1] => Array
(
[0] => c
[1] => d
[2] => e
[3] => 2
[4] => c
[5] => e
[6] => e
[7] => f
[8] => e
[9] => 2
[10] => c
[11] => e
[12] => d
[13] => c
[14] => e
[15] => e
[16] => 2
[17] => c
[18] => e
[19] => d
[20] => c
[21] => e
[22] => e
[23] => f
)
[2] => Array
(
[0] => 8
[1] => 3
[2] => 3
[3] => 0
[4] => 7
[5] => 1
[6] => 1
[7] => 8
[8] => 5
[9] => 0
[10] => 7
[11] => 1
[12] => 1
[13] => d
[14] => 3
[15] => 4
[16] => 0
[17] => 7
[18] => 1
[19] => 1
[20] => d
[21] => d
[22] => 3
[23] => e
)
)