PHP | Ds\Map remove() Function Last Updated : 30 Jul, 2019 Comments Improve Suggest changes Like Article Like Report The Ds\Map::remove() function is an inbuilt function in PHP which is used to remove and return a value by key. Syntax: mixed Ds\Map::remove( $key, $default ) Parameters: This function accepts two parameters as mentioned above and described below: $key: It holds the key value which need to remove. $default: It is optional parameter and it returns if key not found. Return Value: This function returns the value that was removed. Exception: This function throws OutOfRangeException if the key not exist and value of $default is not provided. Below programs illustrate the Ds\Map::remove() function in PHP: Example 1: php <?php // Declare new Map $map = new \Ds\Map([ 1 => "geeks", 2 => "for", 3 => "geeks", 4 => "DataStructures" ]); echo("Map Elements\n"); // Display the map elements print_r($map); echo("\nRemoved element of the map: \n"); // Use remove() function to remove // value at index 3 and return it var_dump($map->remove(3)); ?> Output: Map Elements Ds\Map 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 ) [3] => Ds\Pair Object ( [key] => 4 [value] => DataStructures ) ) Removed element of the map: string(5) "geeks" Example: php <?php // Declare new Map $map = new \Ds\Map([ "a" => "geeks", "b" => "for", "c" => "geeks", "d" => "DataStructures" ]); echo("Map Elements\n"); // Display the map elements print_r($map); echo("\nRemoved element of the map: \n"); // Use remove() function to remove // value at index 3 and return it var_dump($map->remove("c")); ?> Output: Map Elements Ds\Map Object ( [0] => Ds\Pair Object ( [key] => a [value] => geeks ) [1] => Ds\Pair Object ( [key] => b [value] => for ) [2] => Ds\Pair Object ( [key] => c [value] => geeks ) [3] => Ds\Pair Object ( [key] => d [value] => DataStructures ) ) Removed element of the map: string(5) "geeks" Reference: https://www.php.net/manual/en/ds-map.remove.php Comment More infoAdvertise with us Next Article PHP DsSet remove() Function jit_t Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-ds_map Similar Reads PHP | DsMap remove() Function The Ds\Map::remove() function is an inbuilt function in PHP which is used to remove and return a value by key. 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