getBetween_v2.php

<?php
    
    function str_between($string, $start, $end, $innerOnly = true, $remove = false) {

        if (($startPosition = strpos($string, $start)) === false || ($endPosition = strpos($string, $end)) === false) {
            return false;
        }

        if ($innerOnly) {
            $startPosition += strlen($start);
            $endPosition -= strlen($end);
        }

        $between = substr($string, $startPosition, ($endPosition + strlen($end)) - $startPosition);

        if ($remove) {
            return str_replace($between, '', $string);
        }

        return $between;
    }