duandong1869 2017-11-17 09:41
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从评论中提取版本号[关闭]

I have a CSS (or HTML or JS) file with a comment /* Version: 1.2.1 */ near the beginning of the file.

Using PHP/regex, how do I get a string containing '1.2.1'?

I apologise for not RTFM but I can't find an answer on the Google. Any direction on learning regex would be great!

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  • dongyong3223 2017-11-17 10:03
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    $str = '/* Version 1.2.1 */';
    preg_match('/version\s(.*)\s\*/i',$str,$matches);
    
    print_r($matches[1]);
    

    its very simple to grap, \s(.*)\s capture anything in between spaces as first group. display first captured group $matches[1]

    if you are curious that how it works or wanna learn yourself ? you can dive directly into it from here i found this very helpful for beginner.

    Regular Expressions!

    DIY

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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