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PHP 过滤页面中的BOM(实现代码)

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2016-06-13 11:44:381053browse

复制代码 代码如下:


function checkBOM ($filename) {
       $contents = file_get_contents($filename);
       $charset[1] = substr($contents, 0, 1);
       $charset[2] = substr($contents, 1, 1);
      $charset[3] = substr($contents, 2, 1);
      if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
               $rest = substr($contents, 3);
               rewrite $rest;
      }else{
      return false;
    }
 }

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