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run code in 150+ php & hhvm versions
Bugs & Features
<?php class B { var $dd = NULL; } class A { function b() { static $c = null; if (!is_object($c)) $c = new B(); $c->dd++; return $c->dd; } } var_dump(A::b()); var_dump(A::b());
Output for 7.0.0 - 7.1.0
Deprecated: Non-static method A::b() should not be called statically in /in/rPfv1 on line 14 int(1) Deprecated: Non-static method A::b() should not be called statically in /in/rPfv1 on line 15 int(2)
Output for 4.3.0 - 4.4.9, hhvm-3.12.0
int(1) int(2)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.3 - 5.6.28
Strict Standards: Non-static method A::b() should not be called statically in /in/rPfv1 on line 14 int(1) Strict Standards: Non-static method A::b() should not be called statically in /in/rPfv1 on line 15 int(2)
Output for 5.0.0 - 5.1.2
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/rPfv1 on line 3 Strict Standards: Non-static method A::b() should not be called statically in /in/rPfv1 on line 14 int(1) Strict Standards: Non-static method A::b() should not be called statically in /in/rPfv1 on line 15 int(2)