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PHP preg_replace_callback_array() 函数
tryphp_func_regex_preg_replace_callback_array
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<!DOCTYPE html> <html> <body> <?php function countLetters($matches) { return $matches[0] . '[' . strlen($matches[0]) . 'letter]'; } function countDigits($matches) { return $matches[0] . '[' . strlen($matches[0]) . 'digit]'; } $input = "There are 365 days in a year."; $patterns = [ '/\b[a-z]+\b/i' => 'countLetters', '/\b[0-9]+\b/' => 'countDigits' ]; $result = preg_replace_callback_array($patterns, $input); echo $result; ?> </body> </html>