duandang6352 2017-03-20 01:49
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foreach中的Preg_replace无法正常工作

I have a problem with a PHP Code. This loop only executes the last regular expression in the file and when I change the sequence of expressions in the file and another expression becomes last, only this new last expression is executed.

foreach(file('general.txt') as $line) {
    $text = preg_replace("/" . $line . "/", "", $text);
}

The file general.txt contains lines of regular expressions, everything tested. But in this loop, it doesn't work anymore.

Do you maybe know why this is like this? I have tried a lot, but didn't figure out why...

Thank you

Simon

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2条回答 默认 最新

  • dpbf62565 2017-03-20 02:14
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    you need to trim your lines as follows:

    foreach(file('general.txt') as $line) {
        $text = preg_replace("/" . trim($line) . "/", "", $text);
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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