UnneededRegularExpression.md

UnneededRegularExpression

Under the following conditions, using strpos() instead of preg_match() will be faster.

1. Not using matches variables.
2. Not using a pattern including pattern modifiers.
3. Not using a pattern including meta characters.

Before

<?php

if (preg_match("/abc/", $var)) { // UnneededRegularExpression: Using `strpos()` instead of `preg_match()` will be faster.
    something($var);
}

After

<?php

if (strpos($var, "abc") !== false) {
    something($var);
}

Reference

https://secure.php.net/manual/en/function.preg-match.php