SunshinePHP 2019 CFP Started

Ds\Map::sum

(No version information available, might only be in Git)

Ds\Map::sumReturns the sum of all values in the map

说明

public number Ds\Map::sum ( void )

Returns the sum of all values in the map.

Note:

Arrays and objects are considered equal to zero when calculating the sum.

参数

此函数没有参数。

返回值

The sum of all the values in the map as either a float or int depending on the values in the map.

范例

Example #1 Ds\Map::sum() integer example

<?php
$map 
= new \Ds\Map(["a" => 1"b" => 2"c" => 3]);
var_dump($map->sum());
?>

以上例程的输出类似于:

int(6)

Example #2 Ds\Map::sum() float example

<?php
$map 
= new \Ds\Map(["a" => 1"b" => 2.5"c" => 3]);
var_dump($map->sum());
?>

以上例程的输出类似于:

float(6.5)
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