1.2.1058. Scalar Are Not Arrays¶
It is wrong to use a scalar as an array, a Warning is emitted. PHP 7.4 emits a Warning in such situations.
Typehinted argument with a scalar are reported by this analysis. Also, nullable arguments, both with typehint and return type hint.
<?php
// Here, $x may be null, and in that case, the echo will fail.
function foo(?A $x) {
echo $x[2];
}
?>
See also E_WARNING for invalid container read array-access.
1.2.1058.1. Suggestions¶
Update type hints to avoid scalar values
Remove the array syntax in the code using the results
Cast to string type, so the array notation is accessible
1.2.1058.2. Specs¶
Short name |
Php/ScalarAreNotArrays |
Rulesets |
All, Analyze, CE, CI-checks, Changed Behavior, CompatibilityPHP74 |
Exakat since |
1.9.0 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
High |
Features |
array, array-object |
Available in |