interface_exists
(PHP 5 >= 5.0.2, PHP 7)
interface_exists — Checks if the interface has been defined
Description
$interface_name
[, bool $autoload = TRUE
] ) : boolChecks if the given interface has been defined.
Return Values
Returns TRUE if the interface given by
interface_name has been defined, FALSE otherwise.
Examples
Example #1 interface_exists() example
<?php
// Check the interface exists before trying to use it
if (interface_exists('MyInterface')) {
class MyClass implements MyInterface
{
// Methods
}
}
?>
See Also
- get_declared_interfaces() - Returns an array of all declared interfaces
- class_implements() - Return the interfaces which are implemented by the given class or interface
- class_exists() - Checks if the class has been defined
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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