Deprecated: Function create_function() is deprecated in /var/customers/webs/stc/benchmark/include/code_tests.php(51) : eval()'d code on line 2 Test: create_function vs. eval

PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: create_function vs. eval

No Description

Run this test again Return to test menu

Result: Discarded

The test labeled "create_function()" was the faster by 0.0082 seconds, (1.445% faster)

create_function() 100%
eval() 98.555%

The create_function() test took 0.5598 seconds.
The eval() test took 0.568 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 147,712 loops for a total of 2,954,240 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.410) milliseconds per 147,712 loops.
  • Total difference 8.21 milliseconds for 2,954,240 loops

The iteration variablity for Code 1 was (1.5478) milliseconds and Code 2 was (1.1390) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "eval()", was:

eval('
	$x = 0;
	$x += 5;

	if ($x >= 5)
		$x = 0;

	$x;
	$x;');

The second test, "create_function()", was:

/*
$GLOBALS['dummy'] = create_function('', '
	$x = 0;
	$x += 5;

	if ($x >= 5)
		$x = 0;

	$x;
	$x;');
*/

$GLOBALS['dummy']();

Running: Linux (x86_64:1 GB) PHP (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)