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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Historical Results

Based on (4) saved test runs, The test labeled "abs()" was (on average) the faster by 0.016 seconds, (1.740% faster)

abs() 100%
ternary 98.26%

The abs() test took 0.9054 seconds.
The ternary test took 0.9214 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 251,134 loops for a total of 5,022,670 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 251,134 loops.
  • Total difference 16.04 milliseconds for 5,022,670 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, "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 (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)