PHP method to remove BOM headers from project files in batches-PHP Tutorial-php.cn

PHP method to remove BOM headers from project files in batches

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Release： 2023-04-02 10:54:01

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This article mainly introduces the method of removing BOM headers from project files in batches in PHP. It has certain reference value. Now I share it with you. Friends in need can refer to it.

 1 ";
 18                 } else {
 19                     $dirname = $basedir . "/" . $file;
 20                     checkdir($dirname);
 21                 }
 22             }
 23         }
 24         closedir($dh);
 25     }
 26 }
 27 
 28 function checkBOM($filename)
 29 {
 30     global $auto;
 31     $contents = file_get_contents($filename);
 32     $charset[1] = substr($contents, 0, 1);
 33     $charset[2] = substr($contents, 1, 1);
 34     $charset[3] = substr($contents, 2, 1);
 35     if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
 36         if ($auto == 1) {
 37             $rest = substr($contents, 3);
 38             rewrite($filename, $rest);
 39             return ("BOM found, automatically removed.");
 40         } else {
 41             return ("BOM found.");
 42         }
 43     } else
 44         return ("BOM Not Found.");
 45 }
 46 
 47 function rewrite($filename, $data)
 48 {
 49     $filenum = fopen($filename, "w");
 50     flock($filenum, LOCK_EX);
 51     fwrite($filenum, $data);
 52     fclose($filenum);
 53 }
 54 
 55 ?>

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