1.2.1141. Static Global Variables Confusion

PHP can’t have variable that are both static and global variable. While the syntax is legit, the variables will be alternatively global or static.

It is recommended to avoid using the same name for a global variable and a static variable.

<?php

function foo() {
    $a = 1; // $a is a local variable

    global $a; // $a is now a global variable

    static $a; // $a is not w static variable
}

?>

1.2.1141.1. Suggestions

• Avoid using static variables

• Avoid using global variables

• Avoid using the same name for static and global variables

1.2.1141.2. Specs

Short name	Structures/SGVariablesConfusion
Rulesets	All, Semantics, Suggestions
Exakat since	2.1.2
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Features	global, static
Available in	Entreprise Edition, Exakat Cloud