PHP | Ds\Collection clear() Function
Last Updated :
21 Jan, 2019
The Ds\Collection::clear() function is an inbuilt function in PHP which is used to remove all values from the collection.
Syntax:
Ds\Collection::clear( void )
Parameters: This function does not accepts any parameters.
Return Value: This function does not return any value.
Below programs illustrate the Ds\Collection::clear() function in PHP:
Example 1:
<?php
$collection = new \Ds\Vector([1, 2, 3, 4, 5, 6]);
print_r( $collection );
$collection ->clear();
print_r( $collection );
?>
|
Output:
Ds\Vector Object (
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
)
Ds\Vector Object (
)
Example 2:
<?php
$collection = new \Ds\Vector([10, 15, 21, 13, 16, 18]);
var_dump( $collection );
$collection ->clear();
var_dump( $collection );
?>
|
Output:
object(Ds\Vector)#1 (6) {
[0]=> int(10)
[1]=> int(15)
[2]=> int(21)
[3]=> int(13)
[4]=> int(16)
[5]=> int(18)
}
object(Ds\Vector)#1 (0) {
}
Reference: http://php.net/manual/en/ds-collection.clear.php
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