doudou1438
2019-04-06 16:03
浏览 74
已采纳

使用Regex - PHP删除JavaScript注释

I want to minify HTML code using PHP && Regex code

The minify function :

public static function sanitize_output($buffer) {

    $search = array(
        '/ {2,}/',
        '/<!--.*?-->|\t|(?:?
[ \t]*)+/s'
    );
    $replace = array(
        ' ',
        ''
    );
    $buffer = preg_replace($search, $replace, $buffer);

    return $buffer;
}

I use this function when I rendering the template (HTML file), but I get always this error on console

SyntaxError: missing } in compound statement note: { opened at line

The minify code delete some " { " on Js code, is there any solution the fix this problem?

After some search, I found that the error is in JS comments, when I minify the HTML code the comments concatenate with the code.

I try to use this regex

/\/\*[\s\S]*?\*\/|([^:]|^)\/\/.*$/ 

but it's doesn't work

  • 写回答
  • 好问题 提建议
  • 关注问题
  • 收藏
  • 邀请回答

1条回答 默认 最新

  • dongxinxin7809 2019-04-06 21:34
    已采纳

    Like you say, when you Minify your code using the function, all the HTML code be in single line, for that any code after a JS comments well be a comment to. So You can use this PHP regex to remove inline JavaScript comment :

    Your new function :

     public static function sanitize_output($buffer) {
    
            $search = array(
                '#^\s*//.+$#m', //remove JS comment,
                '/ {2,}/',
                '/<!--.*?-->|\t|(?:?
    [ \t]*)+/s'
            );
            $replace = array(
                '',
                ' ',
                ''
            );
            $buffer = preg_replace($search, $replace, $buffer);
    
            return $buffer;
        }
    
    已采纳该答案
    评论
    解决 无用
    打赏 举报

相关推荐 更多相似问题