1.2.896. Overwritten Literals

The same variable is assigned a literal twice. It is possible that one of the assignation is too many.

This analysis doesn’t take into account the distance between two assignations : it may report false positives when the variable is actually used for several purposes, and, as such, assigned twice with different values.

<?php

function foo() {
    // Two assignations in a short sequence : one is too many.
    $a = 1;
    $a = 2;

    for($i = 0; $i < 10; $i++) {
        $a += $i;
    }
    $b = $a;

    // New assignation. $a is now used as an array.
    $a = array(0);
}

?>

1.2.896.1. Suggestions

• Remove one of the assignation (the earliest)

1.2.896.2. Specs

Short name	Variables/OverwrittenLiterals
Rulesets	All, Analyze
Exakat since	0.8.4
PHP Version	All
Severity	Major
Time To Fix	Instant (5 mins)
Precision	Very high
Features	literal
Available in	Entreprise Edition, Exakat Cloud