PHP - Manual: preg_last_error_msg
2025-02-27
(PHP 8)
preg_last_error_msg — Returns the error message of the last PCRE regex execution
此函数没有参数。
Returns the error message on success, or "No error"
if no
error has occurred.
示例 #1 preg_last_error_msg() example
<?php
preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar');
if (preg_last_error() !== PREG_NO_ERROR) {
echo preg_last_error_msg();
}
?>
以上示例会输出:
Backtrack limit exhausted
官方地址:https://www.php.net/manual/en/function.preg-last-error-msg.php