PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: ob_start/ob_get_contents vs. concat

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Historical Results

Based on (2) saved test runs, The test labeled "ob_start()" was (on average) the faster by 0.0102 seconds, (1.320% faster)

ob_start() 100%
concat 98.68%

The ob_start() test took 0.761 seconds.
The concat test took 0.7712 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 203,620 loops for a total of 4,072,400 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 203,620 loops.
  • Total difference 10.18 milliseconds for 4,072,400 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, "ob_start()", was:

ob_start();

for ($i = 0; $i < 100; $i++)
	echo 'Wheat Thins!';

$GLOBALS['dummy'] = ob_get_contents();
ob_end_clean();

The second test, "concat", was:

$value = '';
for ($i = 0; $i < 100; $i++)
	$value .= 'Wheat Thins!';

$GLOBALS['dummy'] = $value;

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)