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<?php class A {} class B extends A {} class C extends B {} var_dump(class_parents('C'));
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 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
array(2) { ["B"]=> string(1) "B" ["A"]=> string(1) "A" }
Output for 5.0.0 - 5.0.5
Warning: class_parents() expects parameter 1 to be object, string given in /in/Vt9sg on line 7 bool(false)
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: class_parents() in /in/Vt9sg on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: class_parents() in /in/Vt9sg on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: class_parents() in /in/Vt9sg on line 7

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