Collection
extends
Countable, IteratorAggregate
in
A Collection represents a group of objects, known as its elements.
Some collections allow duplicate elements and others do not. Some are ordered, and others are unordered.
Collections that have a defined order generally implement Sequence.
Table of Contents
Methods
- contains() : bool
- Checks if a value exists.
Methods
contains()
Checks if a value exists.
public
contains(mixed $needle[, bool $strict = false ]) : bool
Searches for needle using loose comparison unless strict is set.
Parameters
- $needle : mixed
-
The searched value.
Note:
If needle is a string, the comparison is done in a case-sensitive manner.
- $strict : bool = false
-
If the third parameter strict is set to
truethen the ArrayMap::contains() function will also check the types of the needle in this Map.
Return values
bool —Returns true if needle is found in this Map, false
otherwise.