Access to undeclared static property %s::$%s¶
Description¶
This error is reported when reading an undefined static property. The property must be defined before usage, or it yields a Fatal error.
This error is related to static properties: a different error is emitted for non-static properties.
Example¶
<?php
class X {
public static $a = 1;
}
$x = new X;
echo X::$a; // OK
echo X::$b;
$name = 'C';
echo X::${$c}; // dynamic properties
?>
Literal Examples¶
Access to undeclared static property X::$staticProperty
Solutions¶
Define the static property in the requested class.
Fix the name of the property on that class.
Fix the name of the class of the property.
Use a non-static property to handle this situation.
Use property_exists() or isset() to check if the property exists before using it.
Check if the dynamic name of the property is a string, before usage.