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run code in 150+ php & hhvm versions
Bugs & Features
<?php interface I {} class C implements I {} class D {} var_dump((new C) instanceof I); var_dump((new D) instanceof I); var_dump(is_a(new C, 'I')); var_dump(is_a(new D, 'I'));
Output for 5.3.0 - 7.1.0
bool(true) bool(false) bool(true) bool(false)
Output for 5.0.0 - 5.2.17
bool(true) bool(false) Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/kR6cN on line 10 bool(true) Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/kR6cN on line 11 bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/kR6cN on line 3
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/kR6cN on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/kR6cN on line 3
Process exited with code 255.