1.2.1116. Should Use Foreach¶
Use the foreach loop instead of for when traversing an array.
Foreach() is the modern loop : it maps automatically every element of the array to a blind variable, and iterate. This is faster and safer.
<?php
// Foreach version
foreach($array as $element) {
doSomething($element);
}
// The above case may even be upgraded with array_map and a callback,
// for the simplest one of them
$array = array_map('doSomething', $array);
// For version (one of various alternatives)
for($i = 0; $i < count($array); $i++) {
$element = $array[$i];
doSomething($element);
}
// Based on array_pop or array_shift()
while($value = array_pop($array)) {
doSomething($array);
}
?>
See also foreach and 5 Ways To Loop Through An Array In PHP.
1.2.1116.1. Connex PHP features¶
1.2.1116.1.1. Suggestions¶
Move for() loops to foreach(), whenever they apply to a finite list of elements
1.2.1116.1.2. Specs¶
Short name |
Structures/ShouldUseForeach |
Rulesets |
|
Exakat since |
0.12.7 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Instant (5 mins) |
Precision |
Very high |
Examples |
|
Available in |