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我的以下代码不适用于 UTF-8 字符。我该如何解决?
$seed = preg_split('//u', $seed, -1, PREG_SPLIT_NO_EMPTY);
$seed = str_split('АБВГДЕЖЗ'); // and any other characters
shuffle($seed); // probably optional since array_is randomized; this may be redundant
$code = '';
foreach (array_rand($seed, 5) as $k) $md5_hash .= $seed[$k];
//We don't need a 32 character long string so we trim it down to 5
$security_code = $code;
我试过这段代码:
$seed = preg_split('//u', $seed, -1, PREG_SPLIT_NO_EMPTY);
但还是不行。