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jeremytarpley/simple-clean-variable.php

Last active March 24, 2018 15:15
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php to strip out anything that isn't a letter, number or minus
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simple-clean-variable.php
<?php
/*
Had a need to go a little further than PHP's sanitize filters would get me. Basically wanted a simple white list.
ex: filter_var ($variable, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_HIGH) - still leaves a bunch of caracters I don't want in my variable
the preg_replace below will remove anything that isn't a letter, number or minus
*/
$clean_var = preg_replace('/[^a-z0-9-]/', '', $variable);
?>
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