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class_implements()

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<?php
$array 
class_implements (
    
?// mixed $class
    
?  // [bool $autoload = true]
);
?>
Result
$array = false
PHP warning : class_implements(): Class xyz does not exist and could not be loaded
Examples
#1 class_implements  ("ArrayObject")
#2 class_implements  ("Exception")
#3 class_implements  ("xyz")
See also
class_parents, get_declared_interfaces