Historical Results
Based on (2) saved test runs, The test labeled "eval()" was (on average) the faster by 0.0043 seconds, (0.509% faster)
The eval() test took 0.8333 seconds.
The create_function() test took 0.8375 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 219,796 loops for a total of 4,395,910 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.000) milliseconds per 219,796 loops.
- Total difference 4.26 milliseconds for 4,395,910 loops
The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) 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']();