>> I am working with a system that will have users uploading files,and I
>> can't depend on them not using spaces and other things Unix doesnt'
>> like in their file names (like ', ., etc).
> $photo = "This is a photo of my dog, Skippy!.jpg";
> $funkychars = array('\'', '.', ',', '$', '!', ' ');
> $photo = str_replace($funkychars, '_', $photo);
> $photo = strtolower($photo);
NOOOOOOOOOOOOOOOOOOOO*! (*= add some more O's for a more dramaturgical
effect)
Do not say which chars you want to kill. There are always more chars than
you can think of! Better say which chars you allow:
$photo=preg_replace("/[^a-z9-0_\-]+/","",strtolower($photo));
This technique is called "whitelist". "blacklist" techniques are not
bulletproof.
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