1.2.1426. Weird Array Index¶
Array index that looks weird. Arrays index may be string or integer, but some strings looks weird.
In particular, strings that include terminal white spaces, often leads to missed values. Although this is rare error, and often easy to spot, it is also very hard to find when it strikes.
<?php
$array = ['a ' => 1, 'b' => 2, 'c' => 3];
// Later in the code
//Notice: Undefined index: a in /Users/famille/Desktop/analyzeG3/test.php on line 8
echo $array['a'];
//Notice: Undefined index: b in /Users/famille/Desktop/analyzeG3/test.php on line 10
// Note that the space is visible, but easy to miss
echo $array['b '];
// all fine here
echo $array['c'];
?>
1.2.1426.1. Suggestions¶
Remove white spaces when using strings as array index.
1.2.1426.2. Specs¶
Short name |
Arrays/WeirdIndex |
Rulesets |
|
Exakat since |
1.9.9 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
High |
Features |
index |
Available in |