标签: 杂谈 |
有些php文件由于不小心保存成了含bom头的格式而导致出现一系列的问题。以下是批量清除bom头的代码,复制代码,保存成.php文件,放在想执行的文件夹,运行就可以了
- <?php
- if (isset ( $_GET ['dir'] )) { //config the basedir
- $basedir = $_GET ['dir'];
- } else {
- $basedir = '.';
- }
- $auto = 1;
- checkdir ( $basedir );
- function checkdir($basedir) {
- if ($dh = opendir ( $basedir )) {
- while ( ($file = readdir ( $dh )) !== false ) {
- if ($file != '.' && $file != '..') {
- if (! is_dir ( $basedir . "/" . $file )) { // 如果是文件
- echo "filename: $basedir/$file " . checkBOM ( "$basedir/$file" ) . " <br>";
- } else {
- $dirname = $basedir . "/" .$file; // 如果是目录
- checkdir ( $dirname ); // 递归
- }
- }
- }
- 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, $rest );
- return ("<font color=red>BOM found, automatically removed.</font>");
- } else {
- return ("<font color=red>BOM found.</font>");
- }
- } else
- return ("BOM Not Found.");
- }
- function rewrite($filename, $data) {
- $filenum = fopen ( $filename, "w" );
- flock ( $filenum, LOCK_EX );
- fwrite ( $filenum, $data );
- fclose ( $filenum );
- }