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@ 2020-10-05T23:36:29Z

<?php
/*** Results on my machine ***
php 7.2
array_filter: 2.5147440433502
foreach: 0.13733291625977
for i: 0.24090600013733

php 7.4
array_filter: 0.057109117507935
foreach: 0.021071910858154
for i: 0.027867078781128
**/

ini_set('memory_limit', '500M');
$data = range(0, 1000000);

// ARRAY FILTER
$start = microtime(true);
$newData = array_filter($data, function ($item) {
    return $item % 2;
});
$end = microtime(true);

echo "array_filter: ";
echo $end - $start . PHP_EOL;

// FOREACH
$start = microtime(true);
$newData = array();
foreach ($data as $item) {
    if ($item % 2) {
        $newData[] = $item;
    }
}
$end = microtime(true);

echo "foreach: ";
echo $end - $start . PHP_EOL;

// FOR
$start = microtime(true);
$newData = array();
$numItems = count($data);
for ($i = 0; $i < $numItems; $i++) {
    if ($data[$i] % 2) {
        $newData[] = $data[$i];
    }
}
$end = microtime(true);

echo "for i: ";
echo $end - $start . PHP_EOL;

Output for git.master_jit: Fatal error: Out of memory (allocated 26218496 bytes) (tried to allocate 10485760 bytes) in /in/Zit6P on line 19 Stack trace: #0 /in/Zit6P(19): array_filter(Array, Object(Closure)) #1 {main} mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for git.master: Fatal error: Out of memory (allocated 31461376 bytes) (tried to allocate 20971520 bytes) in /in/Zit6P on line 19 Stack trace: #0 /in/Zit6P(19): array_filter(Array, Object(Closure)) #1 {main} mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for rfc.property-hooks: array_filter: 0.077615022659302 foreach: 0.011981964111328 for i: 0.014287948608398

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

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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