PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: ob_start/ob_get_contents vs. concat

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Result: Discarded

The test labeled "ob_start()" was the faster by 0.0859 seconds, (9.519% faster)

ob_start() 100%
concat 90.481%

The ob_start() test took 0.8166 seconds.
The concat test took 0.9025 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 185,383 loops for a total of 3,707,660 runs.

  • Line execution difference (0.000023) milliseconds.
  • Avg difference (4.296) milliseconds per 185,383 loops.
  • Total difference 85.92 milliseconds for 3,707,660 loops

The iteration variablity for Code 1 was (6.0477) milliseconds and Code 2 was (8.6146) 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 (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)