Array_sum () Definition and usage
The Array_sum () function returns the sum of all the values in the array.
If all values are integers, an integer value is returned. If one or more of the values are floating-point numbers, a floating-point number is returned.
The previous version of PHP 4.2.1 modified the incoming array itself to convert the string values into numeric values (which in most cases were converted to 0, depending on the system).
Grammar
Array_sum (Array)
Parameter description
Array required. Specifies the input array.
Example 1
Copy CodeThe code is as follows:
$a =array (0=> "5",1=> ",2=>" 25 ");
echo array_sum ($a);
?>
Output:
45
Example 2
Copy CodeThe code is as follows:
$a =array (0=>5,1=>15,2=>25);
echo array_sum ($a);
?>
Output:
45
Example 3
Copy CodeThe code is as follows:
$a =array (0=>5,1=>15.5,2=>25);
echo array_sum ($a);
?>
Output:
45.5
Example 4
Copy CodeThe code is as follows:
$a =array (0=>5,1=> "15s", 2=>25);
echo array_sum ($a);
?>
Output:
45
Example 5
Copy CodeThe code is as follows:
$a =array (0=>5,1=> "s15s", 2=>25);
echo array_sum ($a);
?>
Output:
30
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