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phpzend-optimizershorthand-ifphp-opcode

Shorthand if then else performance/optimization in php

Talking about PHP, i would like to ask if there is a difference in performance between these two:

$name=($IsBoy)?"George":"Mary";

vs

if($IsBoy)
{
    $name="George";
}
else
{
    $name="Mary";
}

  • Will these two result to different opcode?

  • If yes, Would be any theoretical difference in performance? (of course ignore the time that these two needs to be read / compiled / interpreted)

  • If, yes, then do optimizers like zend optimizer take advantage of this and do any re-arrangements automatically?

p.s. if you believe that my code for the "full-longhand" if-then-else is too complex, please provide an example of the most basic code and answer on that.

UPDATE:

I hoped the question is perfectly clear, but it seems people do not get the message. This question is about the THEORETICAL (...yet real and mesaureable) difference in performance (thats why i applied bold and italic in theoretical). Please do not answer by saying what programming style is more readable and that this is too nitpicking to worry about performance.

p.s. 2: by giving emphasis to the word theoretical i try to prevent answers of the type "don't worry its not worth the trouble, its just nanoseconds."

Solution

  • OK this quite interesting

    i have did a quick x debug test for your tow examples respectively

    and here what i have got

    enter image description here

    enter image description here

    Sure you may have a different result with each refresh put all of them ensure that

    Second method is better than first always

    even though with each refresh you may find first method take less time occasionally but this is something related with PHP core optimization

    regarding to Zend optimizer i didn't test that