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interface_exists

(PHP 5 >= 5.0.2, PHP 7)

Checks if the interface has been defined

bool interface_exists ( string $interface_name [, bool $autoload = true ] )

Checks if the given interface has been defined.

Parameters:

interface_name

The interface name

autoload

Whether to call __autoload or not by default.

Returns:

Returns TRUE if the interface given by interface_name has been defined, FALSE otherwise.

Examples:

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() -

class_implements() -

class_exists() -

Links:

http://php.net/manual/en/function.interface-exists.php

doc_php

2025-01-10 15:47:30

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