- 3.6. Function reference
3.6.6. containsKey() - 3.6.5. contains()
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3.6.6. containsKey()
| Reference | boolean containsKey(container $container, mixed $key) |
|---|---|
| Versions | since 2.0-RC2 |
Returns true, if the container $container contains the specified key.
A note for PHP programmers: the function can be applied to objects, if they implement
ArrayAccessinterface.
- 3.6.6. containsKey()
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3.6.5. contains() - Next »
3.6.7. count()