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<?php class Foo { public function bar() { var_dump(__METHOD__); } public function baz() { var_dump(__METHOD__); } } class FluentWrapper { private $instance; public function __construct($instance) { $this->instance = $instance; } public function __call($name, $args) { $result = $this->instance->{$name}(...$args); return null === $result ? $this->instance : $result; } } $foo = new FluentWrapper(new Foo()); var_dump($foo->bar()); var_dump($foo->baz()); $foo ->bar() ->baz() ->bar() ->baz();
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(8) "Foo::bar" object(Foo)#2 (0) { } string(8) "Foo::baz" object(Foo)#2 (0) { } string(8) "Foo::bar" string(8) "Foo::baz" Fatal error: Uncaught Error: Call to a member function bar() on null in /in/JEvjf:40 Stack trace: #0 {main} thrown in /in/JEvjf on line 40
Process exited with code 255.
Output for 5.6.0 - 5.6.40
string(8) "Foo::bar" object(Foo)#2 (0) { } string(8) "Foo::baz" object(Foo)#2 (0) { } string(8) "Foo::bar" string(8) "Foo::baz" Fatal error: Call to a member function bar() on null in /in/JEvjf on line 40
Process exited with code 255.
Output for 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '.' in /in/JEvjf on line 26
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '.', expecting ')' in /in/JEvjf on line 26
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '.', expecting ')' in /in/JEvjf on line 26
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/JEvjf on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JEvjf on line 5
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/JEvjf on line 5
Process exited with code 255.
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