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@ 2020-12-10T13:45:46Z

<?php

$a = array(
	0 => "foo",
	1 => "bar",
	"animal" => "string",
	3.13 => "pi",
);

$loops = 1000000;

printf("Control loop...\n");
$start = microtime(true);
function process_array($a)
{
	$s = "";
	foreach ($a as $key=>$value)
	{
		$s .= "$key=>$value\n";
	}
}
for ($i = 0; $i < $loops; $i++)
	process_array($a);
$elapsed = microtime(true) - $start;
printf("Elapsed: %.2f s\n\n", $elapsed);

printf("Anonymous lambda function created once and called via reference...\n");
$start = microtime(true);
$process_array_lambda = function($a)
{
	$s = "";
	foreach ($a as $key=>$value)
	{
		$s .= "$key=>$value\n";
	}
};
for ($i = 0; $i < $loops; $i++)
	$process_array_lambda($a);
$elapsed = microtime(true) - $start;
printf("Elapsed: %.2f s\n\n", $elapsed);

printf("Anonymous lambda function called directly...\n");
$start = microtime(true);
for ($i = 0; $i < $loops; $i++)
	(function($a)
	{
		$s = "";
		foreach ($a as $key=>$value)
		{
			$s .= "$key=>$value\n";
		}
	})($a);
$elapsed = microtime(true) - $start;
printf("Elapsed: %.2f s\n\n", $elapsed);

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Output for git.master_jit: Deprecated: Implicit conversion from float 3.13 to int loses precision in /in/6AABv on line 7 Control loop... Elapsed: 0.44 s Anonymous lambda function created once and called via reference... Elapsed: 0.44 s Anonymous lambda function called directly... Elapsed: 0.53 s
Output for git.master: Deprecated: Implicit conversion from float 3.13 to int loses precision in /in/6AABv on line 7 Control loop... Elapsed: 0.42 s Anonymous lambda function created once and called via reference... Elapsed: 0.44 s Anonymous lambda function called directly... Elapsed: 0.54 s
Output for rfc.property-hooks: Deprecated: Implicit conversion from float 3.13 to int loses precision in /in/6AABv on line 7 Control loop... Elapsed: 0.41 s Anonymous lambda function created once and called via reference... Elapsed: 0.42 s Anonymous lambda function called directly... Elapsed: 0.50 s

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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