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Bugs & Features
<?php interface IInterface { } class TheClass implements IInterface { } $interfaces = class_implements('TheClass'); var_dump($interfaces); if (isset($interfaces['IInterface'])) { echo "Yes!"; }
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(1) { ["IInterface"]=> string(10) "IInterface" } Yes!
Output for 5.0.0 - 5.0.5
<br /> <b>Warning</b>: class_implements() expects parameter 1 to be object, string given in <b>/in/tMDFo</b> on line <b>10</b><br /> bool(false)
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING in <b>/in/tMDFo</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING in <b>/in/tMDFo</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/tMDFo</b> on line <b>2</b><br />
Process exited with code 255.