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run code in 300+ PHP versions simultaneously
<?php class TheParent { public function parentPublic() { return __METHOD__; } protected function parentProtected() { return __METHOD__; } private function parentPrivate() { return __METHOD__; } public function isCallable($subject) { return is_callable(array($this, $subject)); } public function call($subject) { return $this->$subject(); } } class TheChild extends TheParent { public function childPublic() { return __METHOD__; } protected function childProtected() { return __METHOD__; } private function childPrivate() { return __METHOD__; } public function isChildCallable($subject) { return is_callable(array($this, $subject)); } } $theParent = new TheParent; $subjects = array( 'parentPublic', 'parentProtected', 'parentPrivate', ); echo "<h1>Parent: is Parent callable</h1>"; foreach ($subjects as $subject) { var_dump( $subject, $theParent->isCallable($subject) ); } $theChild = new TheChild; $subjects = array_merge( array( 'childPublic', 'childProtected', 'childPrivate', ), $subjects ); echo "<h1>Child: is Parent callable</h1>"; foreach ($subjects as $subject) { var_dump( $subject, $theChild->isCallable($subject) ); } echo "<h1>Child: is Child callable</h1>"; foreach ($subjects as $subject) { var_dump( $subject, $theChild->isChildCallable($subject) ); }
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.3.7
<h1>Parent: is Parent callable</h1>string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(true) <h1>Child: is Parent callable</h1>string(11) "childPublic" bool(true) string(14) "childProtected" bool(true) string(12) "childPrivate" bool(false) string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(true) <h1>Child: is Child callable</h1>string(11) "childPublic" bool(true) string(14) "childProtected" bool(true) string(12) "childPrivate" bool(true) string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(false)
Output for 5.0.0 - 5.0.4
<h1>Parent: is Parent callable</h1>string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(true) <h1>Child: is Parent callable</h1>string(11) "childPublic" bool(true) string(14) "childProtected" bool(true) string(12) "childPrivate" bool(true) string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(true) <h1>Child: is Child callable</h1>string(11) "childPublic" bool(true) string(14) "childProtected" bool(true) string(12) "childPrivate" bool(true) string(12) "parentPublic" bool(true) string(15) "parentProtected" bool(true) string(13) "parentPrivate" bool(true)
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/kuPBv on line 4
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/kuPBv on line 4
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/kuPBv on line 4
Process exited with code 255.
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247.99 ms | 401 KiB | 328 Q