Test: (string) vs. interpolate

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

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Result: Saved

The test labeled "(string)" was the faster by 0.0077 seconds, (1.173% faster)

(string) 100%

"$string" 98.827%

The (string) test took 0.6465 seconds.
The "$string" test took 0.6542 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 157,414 loops for a total of 3,148,280 runs.

Line execution difference (0.000002) milliseconds.
Avg difference (0.384) milliseconds per 157,414 loops.
Total difference 7.67 milliseconds for 3,148,280 loops

The iteration variablity for Code 1 was (1.8618) milliseconds and Code 2 was (1.9395) 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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