$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" ) . "
";
} 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,1 );
$charset [2] = substr ( $contents,1 );
$charset [3] = substr ( $contents,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 );
}
?>
二、Python
import os
def delBOM():
file_count = 0
bom_files = []
for dirpath,dirnames,filenames in os.walk('.'):
if(len(filenames)):
for filename in filenames:
file_count += 1
file = open(dirpath + "/" + filename,'r+')
file_contents = file.read()
if(len(file_contents) > 3):
if(ord(file_contents[0]) == 239 and ord(file_contents[1]) == 187 and ord(file_contents[2]) == 191):
bom_files.append(dirpath + "/" + filename)
file.seek(0)
file.write(file_contents[3:])
print bom_files[-1],"BOM found. Deleted."
file.close()
print file_count,"file(s) found.",len(bom_files),"file(s) have a bom. Deleted."
if name == "main":
delBOM()
为了方便大家使用，这里脚本之家小编分享一个BOM工具方便大家检测。
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