PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: abs vs. ternary

Does calling abs() take any less or more time than doing it manually?

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Result: Discarded

The test labeled "ternary" was the faster by 0.0842 seconds, (8.193% faster)

ternary 100%
abs() 91.807%

The ternary test took 0.9435 seconds.
The abs() test took 1.0277 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 253,930 loops for a total of 5,078,600 runs.

  • Line execution difference (0.000017) milliseconds.
  • Avg difference (4.210) milliseconds per 253,930 loops.
  • Total difference 84.21 milliseconds for 5,078,600 loops

The iteration variablity for Code 1 was (7.7085) milliseconds and Code 2 was (2.6644) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

$GLOBALS['dummy'] = 83;
for ($j = 0; $j < 50; $j++)
	$GLOBALS['dummy2'] = abs($GLOBALS['dummy']);

$GLOBALS['dummy'] = -83;
for ($j = 0; $j < 50; $j++)
	$GLOBALS['dummy2'] = abs($GLOBALS['dummy']);

The second test, "ternary", was:

$GLOBALS['dummy'] = 83;
for ($j = 0; $j < 50; $j++)
	$GLOBALS['dummy2'] = $GLOBALS['dummy'] ? -$GLOBALS['dummy'] : $GLOBALS['dummy'];

$GLOBALS['dummy'] = -83;
for ($j = 0; $j < 50; $j++)
	$GLOBALS['dummy2'] = $GLOBALS['dummy'] ? -$GLOBALS['dummy'] : $GLOBALS['dummy'];

Running: Linux (x86_64:1 GB) PHP (7.2.34-18+ubuntu16.04.1+deb.sury.org+1)