<?php
//this seems to work as if there is 2 variables both a protected static and a protected non-static
class foo {
protected static $myvar = 999;
//Uncommenting below leads to a Cannot redeclare foo::$myvar
//public $myvar = 77;
//Normal non-static Instance Functions
public function __construct(){}
public function instancePrintVar(){
echo __FUNCTION__.' '.$this->myvar;
}
public function instanceSetVar($v){
$this->myvar = $mv;
}
//Static functions
public static function staticPrintVar(){
echo __FUNCTION__.' '.self::$myvar;
}
public static function staticSetVar($v){
self::$myvar = $v;
}
}
function nl(){ echo "\n"; }
foo::staticPrintVar();
nl();
$foo = new foo();
$foo->instanceSetVar(3);
$foo->instancePrintVar();
nl();
foo::staticPrintVar(); nl();
$foo::staticPrintVar(); nl();
echo "Conclusion: when using \$this-> to change the value, it adds another non-static version rather than changing the static version";
staticPrintVar 999
Warning: Undefined variable $mv in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 17
Deprecated: Creation of dynamic property foo::$myvar is deprecated in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 14
instancePrintVar
staticPrintVar 999
staticPrintVar 999
Conclusion: when using $this-> to change the value, it adds another non-static version rather than changing the static version
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
staticPrintVar 999
Warning: Undefined variable $mv in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 14
instancePrintVar
staticPrintVar 999
staticPrintVar 999
Conclusion: when using $this-> to change the value, it adds another non-static version rather than changing the static version
staticPrintVar 999
Notice: Undefined variable: mv in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 17
Notice: Accessing static property foo::$myvar as non static in /in/QslAJ on line 14
instancePrintVar
staticPrintVar 999
staticPrintVar 999
Conclusion: when using $this-> to change the value, it adds another non-static version rather than changing the static version
Output for 7.3.32 - 7.3.33
staticPrintVar 999
instancePrintVar
staticPrintVar 999
staticPrintVar 999
Conclusion: when using $this-> to change the value, it adds another non-static version rather than changing the static version
staticPrintVar 999
Notice: Undefined variable: mv in /in/QslAJ on line 17
Strict Standards: Accessing static property foo::$myvar as non static in /in/QslAJ on line 17
Strict Standards: Accessing static property foo::$myvar as non static in /in/QslAJ on line 14
instancePrintVar
staticPrintVar 999
staticPrintVar 999
Conclusion: when using $this-> to change the value, it adds another non-static version rather than changing the static version
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /in/QslAJ on line 42
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /in/QslAJ on line 42
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/QslAJ on line 4
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/QslAJ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/QslAJ on line 4
Process exited with code 255.