Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
URL-encode according to RFC 3986
<?php rawurlencode(string $string): string
<?php                             $ellipsis += 1 + \strlen($f['line']);

                        }

                    }

                    $srcAttr .= sprintf('&separator= &file=%s&line=%d', rawurlencode($f['file']), $f['line']);

                } else {

                    $srcAttr .= '&separator=:';

                }