Online PHP editor | rfc for 1CEqE

@ 2017-07-28T11:23:13Z

<?php
error_reporting(E_ALL & ~E_NOTICE);
ini_set('display_errors', '1');


define('S', 15000);             // list Size
define('N', 10);         // Number of iterations (for benchmark accuracy)
// Comment the lines above and uncomment the lines below to pass the parameters in the command line
//define('S', (int)$argv[1]);
//define('N', (int)$argv[2]);   


printf("Generating %d elements... ", S);
$tsStart = microtime(TRUE);
$array = [];
for ($i = 0; $i < S; $i ++) {
    $array[] = [
        'a' => rand(0, 100),
        'f' => 0,
        'f' => 0,
        'l' => 61.60
    ];
}
printf("Done. Time: %f seconds.\n", microtime(TRUE) - $tsStart);



$time = 0;
for ($l = 0; $l < N; $l ++) {
    $ts = microtime(TRUE);
    $min = min(array_filter(array_column($array, 'a')));
    $time += microtime(TRUE) - $ts;
}
printf("array_filter(): %9.2f seconds/%d iterations. %f seconds/iteration.\n", $time, N, $time/N);



$time = 0;
for ($l = 0; $l < N; $l ++) {
    $ts = microtime(TRUE);
    $min = null;
    foreach ($array as $val) {
        if ($min === null || ($val['a'] && $val['a'] < $min)) {
            $min = $val['a'];
        }
    }
    $time += microtime(TRUE) - $ts;
}
printf("foreach       : %9.2f seconds/%d iterations. %f seconds/iteration.\n", $time, N, $time/N);



$time = 0;
for ($l = 0; $l < N; $l ++) {
    $ts = microtime(TRUE);
    $min = array_reduce($array, function ($min, $val) {
        return $min === null || ($val['a'] && $val['a'] < $min) ? $val['a'] : $min;
    });
    $time += microtime(TRUE) - $ts;
}
printf("reduce @deceze: %9.2f seconds/%d iterations. %f seconds/iteration.\n", $time, N, $time/N);



$time = 0;
for ($l = 0; $l < N; $l ++) {
    $ts = microtime(TRUE);
    $min = array_reduce(
        $array,
        function($acc, array $item) {
            return min($acc, $item['a'] ?: INF);
        },
        INF
    );
    $time += microtime(TRUE) - $ts;
}
printf("reduce @axiac : %9.2f seconds/%d iterations. %f seconds/iteration.\n", $time, N, $time/N);

Output for git.master_jit: Generating 15000 elements... Done. Time: 0.008978 seconds. array_filter(): 0.01 seconds/10 iterations. 0.000729 seconds/iteration. foreach : 0.01 seconds/10 iterations. 0.001066 seconds/iteration. reduce @deceze: 0.01 seconds/10 iterations. 0.001390 seconds/iteration. reduce @axiac : 0.01 seconds/10 iterations. 0.000950 seconds/iteration.
Output for git.master: Generating 15000 elements... Done. Time: 0.002235 seconds. array_filter(): 0.00 seconds/10 iterations. 0.000460 seconds/iteration. foreach : 0.01 seconds/10 iterations. 0.000780 seconds/iteration. reduce @deceze: 0.01 seconds/10 iterations. 0.001184 seconds/iteration. reduce @axiac : 0.01 seconds/10 iterations. 0.000946 seconds/iteration.
Output for rfc.property-hooks: Generating 15000 elements... Done. Time: 0.002356 seconds. array_filter(): 0.00 seconds/10 iterations. 0.000474 seconds/iteration. foreach : 0.01 seconds/10 iterations. 0.000777 seconds/iteration. reduce @deceze: 0.01 seconds/10 iterations. 0.001160 seconds/iteration. reduce @axiac : 0.01 seconds/10 iterations. 0.000955 seconds/iteration.

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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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