试图调用preg_replace中的函数

Question

$string = 'Hello [user=1]';

$bbc = array('/\[user=(.*?)\]/is');

$replace = array(user('textlink',$1));
$s = preg_replace($bbc , $replace, $string);
echo $s

How do I change $1 in preg_replace with a function?

Answer 1

If I understand you correctly, you want to execute user() function on each match? As mentioned in comments, use the preg_replace_callback() function.

<?php
$string = 'Hello [user=1]';
$s = preg_replace_callback(
    '/\[user=(.*?)\]/is',
    function($m) {return user('textlink', $m[1]);},
    $string
);
echo $s;