PHP function to return string between two strings

str_between.php

    /**
     * Get the portion of a string between two given strings.
     *
     * @param  string  $subject
     * @param  string  $start
     * @param  string  $end
     * @param  bool  $insensitive
     * @param  bool  $innerOnly
     * @param  bool  $inverse
     *
     * @return string
     */
    public static function between($string, $start, $end, $insensitive = false, $innerOnly = true, $inverse = false)
    {
        if ($insensitive) {
            $string = strtolower($string);
            $start = strtolower($string);
            $end = strtolower($end);
        }
        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)) - $startPosition);
        if ($inverse) {
            return str_replace($between, '', $string);
        }
        return $between;
    }