1.2.1266. Unpacking Inside Arrays¶
The variadic operator is now available inside arrays. Until PHP 7.4, it is not possible to use the variadic operator, or
...inside arrays.
The workaround is to use array_merge(), after checking that arrays are not empty.
<?php
$a = ['a', 'b', 'c'];
$b = ['d', 'e', 'f'];
// PHP 7.4
$c = [...$a, ...$b];
// PHP 7.3 and older
$c = array_merge($a, $b);
?>
See also Spread Operator in Array Expression and PHP 5.6 and the Splat Operator.
1.2.1266.1. Suggestions¶
Replace array_merge() with
....
1.2.1266.2. Specs¶
Short name |
Php/UnpackingInsideArrays |
Rulesets |
All, CompatibilityPHP53, CompatibilityPHP54, CompatibilityPHP55, CompatibilityPHP56, CompatibilityPHP70, CompatibilityPHP71, CompatibilityPHP72, CompatibilityPHP73 |
Exakat since |
1.8.0 |
PHP Version |
With PHP 7.4 and more recent |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
High |
Features |
array-spread |
Available in |