This article mainly brings you a Unicode signature (BOM) method using PHP to remove the file header. The editor thinks it is quite good, so I will share it with you now and give it as a reference for everyone. Let’s follow the editor and take a look. I hope it can help everyone.
No more nonsense, just go to the code
<?php //此文件用于快速测试UTF8编码的文件是不是加了BOM,并可自动移除 //By Bob Shen $basedir="."; //修改此行为需要检测的目录,点表示当前目录 $auto=1; //是否自动移除发现的BOM信息。1为是,0为否。 //以下不用改动 if ($dh = opendir($basedir)) { while (($file = readdir($dh)) !== false) { if ($file!='.' && $file!='..' && !is_dir($basedir."/".$file)) echo "filename: $file ".checkBOM("$basedir/$file")." <br>"; } closedir($dh); } 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 ($filename, $rest); return true; } else return ("BOM Not Found."); } function rewrite ($filename, $data) { $filenum=fopen($filename,"w"); flock($filenum,LOCK_EX); fwrite($filenum,$data); fclose($filenum); } ?>
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