PHP: strpos_array is strpos that can take an array as needle

strpos_array.php

<?php
function strpos_array($haystack, $needles, $offset = 0) {
	if (is_array($needles)) {
		foreach ($needles as $needle) {
			$pos = strpos_array($haystack, $needle);
			if ($pos !== false) {
				return $pos;
			}
		}
		return false;
	} else {
		return strpos($haystack, $needles, $offset);
	}
}

There's a bit of an issue here.

Since you have multiple needles, it is possible that the first needle is found, but a later needle is found earlier in the string. The above function does not cover that. The below edit will adjust for it.

However this means returning an array of found needles back. If you want only the position of the first occurrence, do as so:
$cursor = reset( strpos_array( .... ) );

If you want all matches for all needles, leave the reset() call out.

function strpos_array($haystack, $needles, $offset = 0) {
	if (is_array($needles)) {
		foreach ($needles as $needle) {
			$found = [];
			$pos = strpos_array($haystack, $needle);
			if ($pos !== false) {
				$found[$needle]=$pos;
			}
		}
		if(!empty($found)){
			return asort($found, SORT_NUMERIC);
		}
		else {
			return false;
		}
	}

	return strpos($haystack, $needles, $offset);
}