Efficiency Comparison Between PHPif and or-PHP source code

Source: Internet
Author: User
The Efficiency Comparison Program of PHPif and or summarized in this article is for your reference. This article briefly summarizes a PHP if and or Efficiency Comparison Program for your reference.

Script ec (2); script

Instance description

The Code is as follows:

$ T1 = microtime ();

While ($ I <= 10000 ){
If (! Defined ('app _ path'); // 0.011059
// Defined ('app _ path') OR 1; // 0.009398
$ I ++;
}

$ T2 = microtime ();
Echo $ t2-$ t1;
?>

Example 2

The Code is as follows:

$ T1 = microtime ();

While ($ I <= 1000000 ){
If (! Defined ('app _ path'); // 0.20043
// Defined ('app _ path') OR 1; // 0.107475
$ I ++;
}

$ T2 = microtime ();
Echo $ t2-$ t1;
?>

Let's test it. Here I tested the result that or is more efficient than if.

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