How Can I Remove Non-Alphanumeric Characters from a String in PHP?

Removing Non-Alphanumeric Characters from a String

You may often encounter situations where you need to strip away characters that aren't part of the alphanumeric (a-z, A-Z, 0-9) set or aren't spaces. This can be useful for various text processing tasks. Fortunately, there's a straightforward solution that employs a regular expression:

preg_replace("/[^A-Za-z0-9 ]/", '', $string);

This function effectively replaces all non-alphanumeric or non-space characters with an empty string. It takes a string as input and returns a new string that conforms to the desired format.

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