array_sum (PHP 4 >= 4.0.4, PHP 5)
array_sum --
Calculate the sum of values in an array
Description number
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 = array( 2 , 4 , 6 , 8 ); "sum(a) = " . array_sum ( $a ) . "\n" ; $b = array( "a" => 1.2 , "b" => 2.3 , "c" => 3.4 ); "sum(b) = " . array_sum ( $b ) . "\n" ; ?>
The above example will output:
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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