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 0.0308 seconds, (4.552% faster)

"$string" 100%

(string) 95.448%

The "$string" test took 0.6462 seconds.
The (string) test took 0.677 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 168,429 loops for a total of 3,368,580 runs.

Line execution difference (0.000009) milliseconds.
Avg difference (1.541) milliseconds per 168,429 loops.
Total difference 30.82 milliseconds for 3,368,580 loops

The iteration variablity for Code 1 was (5.2753) milliseconds and Code 2 was (2.4073) 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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