array_sum
(PHP 4 >= 4.0.4, PHP 5)
array_sum --
Calculate the sum of values in an array.
Description
mixed
array_sum ( array array)
array_sum() returns the sum of values
in an array as an integer or float.
Exemplu 1. array_sum() examples
$a = array(2, 4, 6, 8); echo "sum(a) = ".array_sum($a)."\n";
$b = array("a"=>1.2,"b"=>2.3,"c"=>3.4); echo "sum(b) = ".array_sum($b)."\n";
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The printout of the program above will be:
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Notã:
PHP versions prior to 4.0.6 modified the passed array
itself and converted strings to numbers (which most
of the time converted them to zero, depending on
their value).