Online PHP editor | rfc for UFieo

@ 2018-09-05T22:43:52Z

<?php

class Foo
{
    private $a;
    protected $b;
    public $c;
}

class FooCountable implements \Countable
{
    private $elements = [1,2,3];
    
    public function count()
    {
        return count($this->elements);
    }
}

$tests = [
    'array' => [1,2,3],
    'string' => 'hello world',
    'number' => 123,
    'iterator' => new \ArrayIterator([1,2,3]),
    'countable' => new \FooCountable(),
    'zero' => 0,
    'string_zero' => '0',
    'object' => new \Foo(),
    'stdClass' => new \stdClass,
    'null' => null,
    'empty' => '',
    'boolt' => true,
    'boolf' => false
];


function ignoreCount($data) 
{
    return @count($data);
}

function validatedCount($data) 
{
    if (PHP_VERSION_ID  >= 70300) {
        if (is_countable($data)) {
            return count($data);
        }
    } elseif (PHP_VERSION_ID >= 70100) {
        if (is_array($data) || $data instanceof \Countable) {
            return count($data);
        } elseif(is_iterable($data)) {
            return iterator_count($data);
        }
    } else {
        if (is_array($data) || $data instanceof \Countable) {
            return count($data);
        } elseif ($data instanceof \Traversable) {
            return iterator_count($data);
        }
    }
    
    return null === $data ? 0 : 1;
}

function castCount($data) 
{
    return count((array) $data);
}

foreach ($tests as $type => $data) {
    $expected = @count($data);
    $normal = count($data);
    $ignored = ignoreCount($data);
    $validated = validatedCount($data);
    $casted = castCount($data);
    
    echo 'Type ' . $type . ': ' . \PHP_EOL;
    echo "\t" . 'count(): ' . print_r($normal, 1) . ' ';
    var_dump($normal === $expected);
    echo "\t" . 'Ignored: ' . print_r($ignored, 1) . ' ';
    var_dump($ignored === $expected); 
    echo "\t" . 'Validated: ' . print_r($validated, 1) . ' ';
    var_dump($validated === $expected);
    echo "\t" . 'Casted: ' . print_r($casted, 1) . ' ';
    var_dump($casted === $expected);
    echo \PHP_EOL . '------' . \PHP_EOL . \PHP_EOL;
}

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Return type of FooCountable::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/UFieo on line 14 Type array: count(): 3 bool(true) Ignored: 3 bool(true) Validated: 3 bool(true) Casted: 3 bool(true) ------ Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in /in/UFieo:71 Stack trace: #0 {main} thrown in /in/UFieo on line 71
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
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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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