<?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)
Fatal error: Uncaught Error: Non-static method Foo::isFoo() cannot be called statically in /in/GaqCS:12
Stack trace:
#0 /in/GaqCS(16): Bar->doSomething()
#1 {main}
thrown in /in/GaqCS on line 12
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Fatal error: Uncaught Error: Non-static method Foo::isFoo() cannot be called statically in /in/GaqCS:12
Stack trace:
#0 /in/GaqCS(16): Bar->doSomething()
#1 {main}
thrown in /in/GaqCS on line 12
Process exited with code 255.
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 7.3.32 - 7.3.33
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 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)