1.2.1445. Wrong Type For Native PHP Function

This analysis reports calls to a PHP native function with a wrongly typed value.

<?php

// valid calls
echo exp(1);
echo exp(2.5);

// invalid calls
echo exp("1");
echo exp(array(2.5));

// valid call, but invalid math
// -1 is not a valid value for log(), but -1 is a valid type (int) : it is not reported by this analysis.
echo log(-1);
?>

See also PHP 7.1 no longer converts string to arrays the first time a value is assigned with square bracket notation.

1.2.1445.1. Suggestions

• Set the code to the valid type, when calling a PHP native function

1.2.1445.2. Specs

Short name	Php/WrongTypeForNativeFunction
Rulesets	All, Analyze, CE, CI-checks
Exakat since	2.1.5
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	High
Available in	Entreprise Edition, Community Edition, Exakat Cloud