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array_sum

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

array_sumCalcule la somme des valeurs du tableau

Description

array_sum(array $array): int|float

array_sum() retourne la somme des valeurs du tableau array.

Liste de paramètres

array

Le tableau d'entrée.

Valeurs de retour

Retourne la somme des valeurs, sous la forme d'un entier ou d'un nombre décimal 0 si le array est vide.

Exemples

Exemple #1 Exemple avec array_sum()

<?php
$a
= array(2, 4, 6, 8);
echo
"sum(a) = " . array_sum($a) . "\n";

$b = array("a" => 1.2, "b" => 2.3, "c" => 3.4);
echo
"sum(b) = " . array_sum($b) . "\n";
?>

L'exemple ci-dessus va afficher :

sum(a) = 20
sum(b) = 6.9

add a note

User Contributed Notes 6 notes

up
13
rodrigo at adboosters dot com
1 year ago
If you want to calculate the sum in multi-dimensional arrays:

<?php
function array_multisum(array $arr): float {
   
$sum = array_sum($arr);
    foreach(
$arr as $child) {
       
$sum += is_array($child) ? array_multisum($child) : 0;
    }
    return
$sum;
}
?>

Example:

<?php
$data
=
[
   
'a' => 5,
   
'b' =>
    [
       
'c' => 7,
       
'd' => 3
   
],
   
'e' => 4,
   
'f' =>
    [
       
'g' => 6,
       
'h' =>
        [
           
'i' => 1,
           
'j' => 2
       
]
    ]
];

echo
array_multisum($data);

//output: 28
?>
up
1
Michele Marsching
1 month ago
Notably the function converts strings to float and ignores strings if they are not convertable:

<?php
$a
= array("String", 2, 4, 6, 8);
echo
"sum(a) = " . array_sum($a) . "\n";

$b = array("12.3456", 2, 4, 6, 8);
echo
"sum(b) = " . array_sum($b) . "\n";
?>

sum(a) = 20
sum(b) = 32.3456
up
0
harl at gmail dot com
1 month ago
array_sum() doesn't "ignore strings if they are not convertible", it converts them to zero. array_product() does the same thing, where the difference between "ignoring" and "converting to zero" is much more obvious.
up
-7
samiulmomin191139 at gmail dot com
1 year ago
<?php
//you can also sum multidimentional arrays like this;

function arraymultisum(array $arr){
$sum=null;
   
    foreach(
$arr as $child){
       
$sum+=is_array($child) ? arraymultisum($child):$child;
    }
    return
$sum;
}

echo
arraymultisum(array(1,4,5,[1,5,8,[4,5,7]]));

//Answer Will be
//40

?>
up
-14
yakushabb at gmail dot com
1 year ago
array_sum converts strings to integer and array_sum(2,'2') returns 4.

I had no idea.
up
-36
444
11 months ago
$total = 0;
foreach ($array as $key => $value){
   $total += $value;
}
Print "sum $total";
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