array_sum Calculate the sum of values in an array &reftitle.description; numberarray_sum arrayarray array_sum returns the sum of values in an array. &reftitle.parameters; array The input array. &reftitle.returnvalues; Returns the sum of values as an integer or float. &reftitle.changelog; &Version; &Description; 4.2.1 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). &reftitle.examples; 1.2, "b" => 2.3, "c" => 3.4); echo "sum(b) = " . array_sum($b) . "\n"; ?> ]]> &example.outputs;