The DS\Map::clear() function of the Map class in PHP is used to clear a Map object. That is it deletes all of the values from a given Map object. It does not delete the Map, it just removes all of the values from the Map object.
Syntax:
void public Ds\Map::clear ( void )
Parameter: It does not accepts any parameter.
Return value: This function does not returns any value.
Below program illustrate the DS\Map::clear() function in PHP:
<?php // PHP program to illustrate the clear() // function of Ds\map   // Creating a Map $map = new \Ds\Map(["1" => "Geeks",             "2" => "for", "3" => "Geeks"]);   // Removing all values from Map $map->clear();   print_r($map);   ?> |
Output:
Ds\Map Object ( )
Reference: http://php.net/manual/en/ds-map.clear.php
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