Php bom removal tool, php batch removal of bom code

The php batch file bom code removal function supports batch folder removal. The specific PHP file code is as follows:

<? Phpheader ('content-Type: text/html; charset = UTF-8 '); $ auto = 1;/* set to 1 to detect BOM and remove it, if it is set to 0, only BOM detection is performed. */$ basedir = 'is not removed '. '; $ loop = true; // www. phpernote. comecho 'the directory currently searched is :'. $ basedir. 'Current settings are: '; echo' (1) ', $ loop? 'Check the current directory and the subdirectory of the current directory': 'check the current directory only '; echo' (2) ', $ auto? 'Check the file BOM and remove the BOM detected in the BOM file <br/> ': 'Only check the file BOM and do not perform the BOM removal operation. <br/>'; checkdir ($ basedir, $ loop); function checkdir ($ basedir = '', $ loop = true) {$ basedir = empty ($ basedir )? '.': $ Basedir; if ($ dh = opendir ($ basedir) {while ($ file = readdir ($ dh ))! = False) {if ($ file! = '.' & $ File! = '..') {If (! Is_dir ($ basedir. '/'. $ file) {echo 'file :'. $ basedir. '/'. $ file. checkBOM ($ basedir. '/'. $ file ). '<br>';} else {if (! $ Loop) continue; $ dirname = $ basedir. '/'. $ file; 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) {if ($ auto = 1) {$ rest = substr ($ contents, 3); rewrite ($ filename, $ rest ); return ('<font color = red> Find the BOM and remove it automatically </font> ');} else {return ('<font color = red> find BOM </font>') ;}} else {return ('no BOM found ');}} function rewrite ($ filename, $ data) {$ filenum = fopen ($ filename, 'w'); flock ($ filenum, LOCK_EX); fwrite ($ filenum, $ data ); fclose ($ filenum );}

Save the above Code as a php file and put it in the directory where the bom needs to be removed, and then run the php file, the bom check will be performed on the directory and all the files in the subdirectories of the directory, and the bom will be removed. The running result page is as follows:

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