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Ds\Set::sum

(PECL ds >= 1.0.0)

Ds\Set::sumReturns the sum of all values in the set

Descrierea

public Ds\Set::sum ( void ) : number

Returns the sum of all values in the set.

Notă:

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

Parametri

Această funcție nu are parametri.

Valorile întoarse

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

Exemple

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

<?php
$set 
= new \Ds\Set([123]);
var_dump($set->sum());
?>

Exemplul de mai sus va afișa ceva similar cu:

int(6)

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

<?php
$set 
= new \Ds\Set([12.53]);
var_dump($set->sum());
?>

Exemplul de mai sus va afișa ceva similar cu:

float(6.5)
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