1.2.1425. Weak Typing

The variable’s validation is not enough to allow for a sophisticated usage. For example, the variable is checked for null, then used as an object or an array.

<?php

if ($a !== null) {
    echo $a->b;
}

?>

See also From assumptions to assertions.

1.2.1425.1. Suggestions

• Use instanceof when checking for objects

• Use is_array() when checking for arrays. Also consider is_string(), is_int(), etc.

• Use typehint when the variable is an argument

1.2.1425.2. Specs

Short name	Classes/WeakType
Rulesets	All, Analyze, Changed Behavior
Exakat since	1.2.8
PHP Version	All
Severity	Minor
Time To Fix	Instant (5 mins)
Precision	Very high
Features	typehint
Examples	TeamPass
Available in	Entreprise Edition, Exakat Cloud