相关疑难解决方法(0)

function recursiveSplit($string, $layer) {
    $err = preg_match_all("/\{(([^{}]*|(?R))*)\}/",$string,$matches);
    echo "Elementi trovati: $err<br>";
    if($err == FALSE) echo "preg_match_all ERROR<br>";

    // iterate thru matches and continue recursive split
    if (count($matches) > 1) {
        for ($i = 0; $i < count($matches[1]); $i++) {
            if (is_string($matches[1][$i])) {
                if (strlen($matches[1][$i]) > 0) {
                    echo "<pre>Layer ".$layer.":   ".$matches[1][$i]."</pre><br />";
                    recursiveSplit($matches[1][$i], $layer + 1);
                }
            }
        }
    }
}

$buffer = "{aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa{aaaaaaaaaaaaaaaaaa{aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa}";
recursiveSplit($buffer, 0);

产量

Elementi trovati: 
preg_match_all ERROR
Backtrack limit was exhausted!

此代码给出了PREG_BACKTRACK_LIMIT_ERROR错误...但回溯限制设置为100.000.000.

这是我第一次使用正则表达式,我真的不知道如何解决它.

非常感谢,Marco