Online PHP editor | rfc for KIeQB

@ 2025-12-18T04:06:46Z

<?php

$url = '';

/** @var non-empty-string|null $s */
function take_non_empty_string_or_null(?string $s): void {
    echo (string) $s;
}

function take_any_string(string $s): void {
    echo $s;
}

function take_an_int_or_null(?int $s): void {
    echo (int) $s;
}

/**
 * @param array{path: string} $arr
 */
function take_url(array $arr): void {
    foreach($arr as $v) {
        if (null !== $v) {
            take_any_string($v);
        }
    }
}

var_dump(parse_url($url)); // array{}
take_non_empty_string_or_null(parse_url($url, PHP_URL_SCHEME)); // null|non-empty-string
take_non_empty_string_or_null(parse_url($url, PHP_URL_USER)); // null|non-empty-string
take_non_empty_string_or_null(parse_url($url, PHP_URL_PASS)); // null|non-empty-string
take_non_empty_string_or_null(parse_url($url, PHP_URL_HOST)); // null|non-empty-string
take_an_int_or_null(parse_url($url, PHP_URL_PORT)); // null|int
take_any_string(parse_url($url, PHP_URL_PORT)); // string
take_non_empty_string_or_null(parse_url($url, PHP_URL_PATH)); // null|non-empty-string
take_non_empty_string_or_null(parse_url($url, PHP_URL_QUERY)); // null|non-empty-string
take_non_empty_string_or_null(parse_url($url, PHP_URL_FRAGMENT)); // null|non-empty-string

Output for git.master_jit, git.master, rfc.property-hooks: array(1) { ["path"]=> string(0) "" } 0 Fatal error: Uncaught TypeError: take_any_string(): Argument #1 ($s) must be of type string, null given, called in /in/KIeQB on line 35 and defined in /in/KIeQB:10 Stack trace: #0 /in/KIeQB(35): take_any_string(NULL) #1 {main} thrown in /in/KIeQB on line 10
Process exited with code 255.

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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