Rule Definition
In PHP ignoring the result of a function indicates that the programmer has made an assumption about this return value. Unfortunately, sometimes this assumption can be wrong and produce unexpected results for the application.
Remediation
Modify the source code and always check the return value of functions.
Violation Code Sample
<?php
function foo($param1, $param2){
return $param1 + $param2;
}
foo(1,2);//violation
//further processing
?>
Fixed Code Sample
<?php
function foo($param1, $param2){
return $param1 + $param2;
}
$result =foo(1,2);//violation
//further processing
?>
Related Technologies
Technical Criterion
Programming Practices - Unexpected Behavior
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