Online PHP editor | rfc for tbe6i

@ 2017-07-24T12:11:41Z

<?php
// The smallest, ugliest autowiring container.

function dep_set($n, $v) {
    $GLOBALS['deps'][$n] = $v;
}

function dep_get($n) {
    $v = &$GLOBALS['deps'][$n];
    if (!$v) $v = $n;
    $r = $v instanceof Closure ? new ReflectionFunction($v) : (new ReflectionClass($n))->getConstructor();
    $a = [];
    foreach ($r->getParameters() as $i => $p) {
        $pc = $p->getClass();
        if (!$pc) throw new Exception('Cannot magically resolve a param $' . $p->name . ' without class typehint');
        $pn = $pc->name;
        $a[] = dep_get(isset($GLOBALS['deps'][$n . '@' . $pn]) ? $n . '@' . $pn : $pn);
    }
    $v = $v instanceof Closure ? $v(...$a) : new $v(...$a);
    return $v;
}

// Usage:

class A {
    function __construct($a, $b) {
        echo $a + $b; // 3
    }
    
    function b() {
        echo 4;
    }
}

class B {
    function __construct(A $a) {
        $a->b();
    }
}

class C {
    function __construct(B $a) {
    }
}

dep_set(A::class, function () {
   return new A(1, 2); 
});

$c = dep_get(C::class); // Instantiates A, B, C and prints "34"

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/tbe6i on line 14 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/tbe6i on line 14 34

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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

preferences:dark modelive preview