递归删除utf8文件的bom头(该bom头可能导致php产生意外输出)

sdfouhdso888

　　不废话了, 是php代码, 如果要处理大文件, 可以改改, 这里是直接读入到数组中
　　//author: selfimpr//blog: http://blog.csdn.net/lgg201//mail: lgg860911@yahoo.com.cn//EF BB BF这三个字节称为bom头function hasbom(&$content) {$firstline = $content[0];return ord(substr($firstline, 0, 1)) === 0xEFand ord(substr($firstline, 1, 1)) === 0xBB and ord(substr($firstline, 2, 1)) === 0xBF;}function unsetbom(&$content) {hasbom($content) and ($content[0] = substr($content[0], 3)); }function write($filename, &$content) {$file = fopen($filename, 'w');fwrite($file, implode($content, ''));fclose($file);}function filenames($path) {$directory = opendir($path);while (false != ($filename = readdir($directory))) strpos($filename, '.') !== 0 and $filenames[] = $filename;closedir($directory);return $filenames;}function process($path) {$parent = opendir($path);while (false != ($filename = readdir($parent))) {echo $filename."/n";if(strpos($filename, '.') === 0) continue;if(is_dir($path.'/'.$filename)) {process($path.'/'.$filename);} else {$content = file($path.'/'.$filename);unsetbom($content);write($path.'/'.$filename, $content);}}closedir($parent);}process('/home/selfimpr/t');