1.2.50. Assert Function Is Reserved

Avoid defining an assert function in namespaces.

While they work fine when the assertions are active (zend.assertions=1), calls to unqualified assert are optimized away when assertions are not active.

Since PHP 7.3, a fatal error is emitted : Defining a custom `assert() <https://www.php.net/assert>`_ function is deprecated, as the function has special semantics.

<?php
//      Run this with zend.assertions=1 and
// Then run this with zend.assertions=0

namespace Test {
    function assert() {
        global $foo;

        $foo = true;
    }
}

namespace Test {
    assert();

    var_dump(isset($foo));
}

?>

See also assert and User-defined assert function is optimized away with zend.assertions=-1.

1.2.50.1. Suggestions

• Rename the custom function with another name

1.2.50.2. Specs

Short name	Php/AssertFunctionIsReserved
Rulesets	All, Analyze, Changed Behavior, CompatibilityPHP73, Deprecated
Exakat since	1.3.9
PHP Version	All
Severity	Critical
Time To Fix	Slow (1 hour)
Changed Behavior	PHP 7.2 - More
Precision	Very high
Features	assertion
Available in	Entreprise Edition, Exakat Cloud