Warning: Division by zero in /var/customers/webs/stc/benchmark/index.php on line 256 Test: substr negative vs. strlen

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Test: substr() negative vs. strlen()

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Result

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Code

The first test, "substr($var, -1)", was:

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = substr($GLOBALS['dummy'], -1);

The second test, "strlen()", was:

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = substr($GLOBALS['dummy'], strlen($GLOBALS['dummy']) - 1);

Running: Linux (x86_64:1 GB) PHP (7.2.22-1+ubuntu16.04.1+deb.sury.org+1)