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run code in 200+ php & hhvm versions
<?php class Foo { public function isFoo() { var_dump(isset($this)); return $this instanceof Foo; } } class Bar { public function doSomething() { return Foo::isFoo(); } } $b = new Bar; var_dump($b->doSomething()); // bool(false)
based on hZfEG
Output for 7.1.0 - 7.3.1
Deprecated: Non-static method Foo::isFoo() should not be called statically in /in/GaqCS on line 12 bool(false) Fatal error: Uncaught Error: Using $this when not in object context in /in/GaqCS:6 Stack trace: #0 /in/GaqCS(12): Foo::isFoo() #1 /in/GaqCS(16): Bar->doSomething() #2 {main} thrown in /in/GaqCS on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.32
Deprecated: Non-static method Foo::isFoo() should not be called statically in /in/GaqCS on line 12 bool(false) Notice: Undefined variable: this in /in/GaqCS on line 6 bool(false)
Output for hhvm-3.22.0
bool(false) Notice: Undefined variable: this in /in/GaqCS on line -1 bool(false)
Output for hhvm-3.11.1 - 3.21.3
bool(false) Notice: Undefined variable: this in /in/GaqCS on line 6 bool(false)
Output for 5.6.0 - 5.6.38
Deprecated: Non-static method Foo::isFoo() should not be called statically, assuming $this from incompatible context in /in/GaqCS on line 12 bool(true) bool(false)
Output for 5.5.0 - 5.5.38
Strict Standards: Non-static method Foo::isFoo() should not be called statically, assuming $this from incompatible context in /in/GaqCS on line 12 bool(true) bool(false)