What is the array_sum method in PHP?
The array_sum method returns the sum of the array.
Syntax
array_sum(array $array): int|float
Parameter
array: the array for which the sum is to be calculated.
The return type of this method is either an int or a float value. If the array is empty, then zero is returned.
Code
<?php$arr = array(1,2,3);echo "The array is \n";print_r($arr);echo "The sum is :";echo array_sum($arr);echo "\n-------\n";$arr = array('a' => 1.4, 2);echo "The array is \n";print_r($arr);echo "The sum is :";echo array_sum($arr);?>
In the code above:
- We create an array with values
1,2,3and call thearray_summethod. This will return the sum of the array. In our case, it will return6. - We then create another array with values
1.4, 2; for this array,array_sumwill return3.4as a result.
In the array, the values that cannot be converted to numbers are skipped inside the array_sum method. For example:
<?php$arr = array(1, "2", true, "yes", "no");echo array_sum($arr);?>
In the above code, we create an array with the values 1, "2", true, "yes", and "no".
In the above values:
"2"will be converted to2.truewill be converted to1."yes"&"no"will be skipped.
After converting, The sum will be calculated. In this case, the sum will be 4 (1 + 2 + 1).
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