PHP funkce is_callable()
Dostupnost ve verzích: PHP 4.0.6
Verify that the contents of a variable can be called as a function
Parametry
| Parametr | Datový typ | Výchozí hodnota | Poznámka |
|---|---|---|---|
$name |
`callback | callable` | není |
$syntax_only |
bool |
null, | If set to true the function only verifies that name might be a function or method. It will only reject simple variables that are not strings, or an array that does not have a valid structure to be used as a callback. The valid ones are supposed to have only 2 entries, the first of which is an object or a string, and the second a string. |
$callable_name |
string |
null | Receives the "callable name". In the example below it is "someClass::someMethod". Note, however, that despite the implication that someClass::SomeMethod() is a callable static method, this is not the case. |
Návratové hodnoty
bool
true if name is callable, false otherwise.