How to remove bom headers in batches in php-PHP Problem-php.cn

php method to remove BOM headers in batches: [

How to remove bom headers in batches in php

The operating environment of this article: windows10 system, PHP7, thinkpad t480 computer.

We are in the actual development process BOM headers are often encountered in the program. The existence of these BOM headers often causes the program to fail to run normally, like the following:

How to remove bom headers in batches in php

So how should we solve this problem? What’s the problem? In fact, it’s not difficult. Let’s take a look at the implementation code:

去除BOM头解决方法: "; } else { $dirname = $basedir . "/" .$file; // 如果是目录 checkdir ( $dirname ); } } } closedir ( $dh ); } } function checkBOM($filename) { global $auto; $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 ( $charset [3] ) == 191) { // BOM 的前三个字符的ASCII 码分别为 239 187 191 if ($auto == 1) { $rest = substr ( $contents, 3 ); rewrite ( $filename, $rest ); return ("BOM found, automatically removed."); } else { return ("BOM found."); } } else return ("BOM Not Found."); } function rewrite($filename, $data) { $filenum = fopen ( $filename, "w" ); flock ( $filenum, LOCK_EX ); fwrite ( $filenum, $data ); fclose ( $filenum ); } $auto=1; $dir='D:/web/';//项目文件路径 checkDir($dir); ?>

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