Test: (string) vs. interpolate

Common from perl, many people use double quotes to force a string value.

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Result: Discarded

The test labeled "(string)" was the faster by 0.045 seconds, (5.948% faster)

(string) 100%

"$string" 94.052%

The (string) test took 0.711 seconds.
The "$string" test took 0.756 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 195,447 loops for a total of 3,908,940 runs.

Line execution difference (0.000012) milliseconds.
Avg difference (2.249) milliseconds per 195,447 loops.
Total difference 44.97 milliseconds for 3,908,940 loops

The iteration variablity for Code 1 was (0.5004) milliseconds and Code 2 was (1.4587) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

for ($j = 0; $j < 1000; $j++)
	$GLOBALS['dummy'] = (string) $j;

The second test, ""$string"", was:

for ($j = 0; $j < 1000; $j++)
	$GLOBALS['dummy'] = "$j";

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