The Ds\Map::pairs() function in PHP is used to get all of the pairs from the specified Map instance. This function returns a sequence of type Ds\Sequence containing all of the pairs from the Map instance.
Syntax:
Ds\Sequence public Ds\Map::pairs ( void )
Parameter: This function does not accepts any parameter.
Return value: It returns a sequence of type Ds\Sequence containing all of the pairs from the specified Map instance.
Below programs illustrate the Ds\Map::pairs() function:
Program 1:
<?php // PHP program to illustrate pairs() function $map = new \Ds\Map([1 => "Geeks", 2 => "for", 3 => "Geeks"]); print_r($map->pairs()); ?> |
Output:
Ds\Vector Object
(
[0] => Ds\Pair Object
(
[key] => 1
[value] => Geeks
)
[1] => Ds\Pair Object
(
[key] => 2
[value] => for
)
[2] => Ds\Pair Object
(
[key] => 3
[value] => Geeks
)
)
Program 2:
<?php // PHP program to illustrate pairs() function $map = new \Ds\Map(["first" => "Geeks", "second" => "for", "third" => "Geeks"]); print_r($map->pairs()); ?> |
Output:
Ds\Vector Object
(
[0] => Ds\Pair Object
(
[key] => first
[value] => Geeks
)
[1] => Ds\Pair Object
(
[key] => second
[value] => for
)
[2] => Ds\Pair Object
(
[key] => third
[value] => Geeks
)
)
Reference: http://php.net/manual/en/ds-map.pairs.php
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