CLASS_IMPLEMENTS(3) 1 CLASS_IMPLEMENTS(3)class_implements - Return the interfaces which are implemented by the given class or interfaceSYNOPSIS
array class_implements (mixed $class, [bool $autoload = true])
DESCRIPTION
This function returns an array with the names of the interfaces that the given $class and its parents implement.
PARAMETERS
o $class
- An object (class instance) or a string (class or interface name).
o $autoload
- Whether to allow this function to load the class automatically through the __autoload(3) magic method.
RETURN VALUES
An array on success, or FALSE on error.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.1.0 | |
| | |
| | Added the option to pass the $class parameter as |
| | a string. Added the $autoload parameter. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
class_implements(3) example
<?php
interface foo { }
class bar implements foo {}
print_r(class_implements(new bar));
// since PHP 5.1.0 you may also specify the parameter as a string
print_r(class_implements('bar'));
function __autoload($class_name) {
require_once $class_name . '.php';
}
// use __autoload to load the 'not_loaded' class
print_r(class_implements('not_loaded', true));
?>
The above example will output something similar to:
Array
(
[foo] => foo
)
Array
(
[interface_of_not_loaded] => interface_of_not_loaded
)
SEE ALSO class_parents(3), get_declared_interfaces(3).
PHP Documentation Group CLASS_IMPLEMENTS(3)
Check Out this Related Man Page
PRINT_R(3) 1 PRINT_R(3)print_r - Prints human-readable information about a variableSYNOPSIS
mixed print_r (mixed $expression, [bool $return = false])
DESCRIPTION print_r(3) displays information about a variable in a way that's readable by humans.
print_r(3), var_dump(3) and var_export(3) will also show protected and private properties of objects with PHP 5. Static class members will
not be shown.
PARAMETERS
o $expression
- The expression to be printed.
o $return
- If you would like to capture the output of print_r(3), use the $return parameter. When this parameter is set to TRUE, print_r(3)
will return the information rather than print it.
RETURN VALUES
If given a string, integer or float, the value itself will be printed. If given an array, values will be presented in a format that shows
keys and elements. Similar notation is used for objects.
When the $return parameter is TRUE, this function will return a string. Otherwise, the return value is TRUE.
NOTES
Note
When the $return parameter is used, this function uses internal output buffering so it cannot be used inside an ob_start(3) callback
function.
EXAMPLES
Example #1
print_r(3) example
<pre>
<?php
$a = array ('a' => 'apple', 'b' => 'banana', 'c' => array ('x', 'y', 'z'));
print_r ($a);
?>
</pre>
The above example will output:
<pre>
Array
(
[a] => apple
[b] => banana
[c] => Array
(
[0] => x
[1] => y
[2] => z
)
)
</pre>
Example #2
$return parameter example
<?php
$b = array ('m' => 'monkey', 'foo' => 'bar', 'x' => array ('x', 'y', 'z'));
$results = print_r($b, true); // $results now contains output from print_r
?>
SEE ALSO ob_start(3), var_dump(3), var_export(3).
PHP Documentation Group PRINT_R(3)