1.2.71. Avoid array_push()¶
array_push() is slower than the append [] operator.
This is also true when the append operator is called several times, while array_push() is be called only once, with an arbitrary number of argument.
Using count after the push is also faster than collecting array_push() return value. It is a micro-optimisation.
<?php
$a = [1,2,3];
// Fast version
$a[] = 4;
$a[] = 5;
$a[] = 6;
$a[] = 7;
$count = count($a);
// Slow version
array_push($a, 4);
$count = array_push($a, 5,6,7);
// Multiple version :
$a[] = 1;
$a[] = 2;
$a[] = 3;
array_push($a, 1, 2, 3);
?>
1.2.71.1. Suggestions¶
Use the [] operator
1.2.71.2. Specs¶
Short name |
Performances/AvoidArrayPush |
Rulesets |
|
Exakat since |
0.9.1 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Instant (5 mins) |
Precision |
Very high |
Available in |