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Ds\Map::sum — Returns the sum of all values in the map
public Ds\Map::sum ( ) : int|float
Returns the sum of all values in the map.
Note:
Arrays and objects are considered equal to zero when calculating the sum.
This function has no parameters.
The sum of all the values in the map as either a float or int depending on the values in the map.
Example #1 Ds\Map::sum() integer example
The above example will output something similar to:
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https://www.php.net/manual/en/ds-map.sum.php