For example suppose I have
$blah = "C$#@#.a534&";
I wish to filter the string so that only letters, numbers and “.” remain yielding “C.a534”
How do I do this?
For example suppose I have $blah = C$#@#.a534&; I wish to filter the string
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For example suppose I have
$blah = "C$#@#.a534&";
I wish to filter the string so that only letters, numbers and “.” remain yielding “C.a534”
How do I do this?
If you know what characters should be allowed, you can use a negated character group (in a regular expression) to remove everything else:
Note that i am using the
imodifier for the regular expression. It matches case-insensitive, so that we do not need to specifya-zandA-Z.