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array_sum (PHP 4 >= 4.0.4) array_sum -- Calculate the sum of values in an array. Descriptionmixed array_sum ( array array)
array_sum() returns the sum of values in an array as an integer or float.
Example 1. array_sum() examples <?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";
?> |
The printout of the program above will be: |
Note: PHP versions prior to 4.2.1 modified the passed array itself and converted strings to numbers (which most of the time converted them to zero, depending on their value).
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