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run code in 150+ php & hhvm versions
Bugs & Features
<?php class A{} class B extends A{} interface I{ public function z1(A $var); public function z2(A $var); } class M implements I{ public function z1(B $var){} // doesnt work public function z2(A $var){ if($var instanceOf B) { // works (extra if+instanceOf needed) } } }
Output for 7.0.0 - 7.1.0
Fatal error: Declaration of M::z1(B $var) must be compatible with I::z1(A $var) in /in/Il7R3 on line 10
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Declaration of M::z1() must be compatible with I::z1(A $var) in /in/Il7R3 on line 10
Process exited with code 255.
Output for 5.0.0 - 5.3.29
Fatal error: Declaration of M::z1() must be compatible with that of I::z1() in /in/Il7R3 on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/Il7R3 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/Il7R3 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Il7R3 on line 5
Process exited with code 255.