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 // Create a collection $collection = new \Ds\Vector([1, 2, 3, 4, 5, 6]); // Display the collection element print_r($collection); // Use clear() function to remove elements $collection->clear(); // Display the collection element print_r($collection); ?> |
Output:
Ds\Vector Object (
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
)
Ds\Vector Object (
)
Example 2:
<?php // Create a collection $collection = new \Ds\Vector([10, 15, 21, 13, 16, 18]); // Display the collection element var_dump($collection); // Use clear() function to remove elements $collection->clear(); // Display the collection element var_dump($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) {
}
