PHP One-liners

I'm starting a collection of one-line PHP programs that I've used on the command line.

This removes trailing white space from a DOS file:

C:\>php -r "foreach (file($argv[1]) as $l) {print rtrim($l).chr(13).chr(10);}" user.module > user.module.trimed

This little gem escapes code for inclusion in HTML. The invocation uses UNIX's cat utility, on Widows you could use type:

$ cat test.php | php -r "print htmlentities(file_get_contents('php://stdin'));"

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