33 lines
625 B
Plaintext
33 lines
625 B
Plaintext
<code>$this</code> refers to the current class instance. But static methods can be accessed without instantiating the class, and <code>$this</code> is not available to them. Using <code>$this</code> in a static context will result in a fatal error at runtime.
|
|
|
|
|
|
== Noncompliant Code Example
|
|
|
|
----
|
|
class Clazz {
|
|
$name=NULL; // instance variable
|
|
|
|
public static function foo(){
|
|
if ($this->name != NULL) {
|
|
// ...
|
|
}
|
|
}
|
|
}
|
|
----
|
|
|
|
|
|
== Compliant Solution
|
|
|
|
----
|
|
class Clazz {
|
|
$name=NULL; // instance variable
|
|
|
|
public static function foo($nameParam){
|
|
if ($nameParam != NULL) {
|
|
// ...
|
|
}
|
|
}
|
|
}
|
|
----
|
|
|