How to use Array_sum () to calculate the sum of the array element values

Source: Internet
Author: User
This time to everyone how to use Array_sum () to calculate the sum of the values of the array elements, using Array_sum () to calculate the value of the sum of the elements of the array of considerations, the following is the actual case, together to see.

Array_sum () Definition and usage
The Array_sum () function returns the sum of all the values in the array.

If all values are integers, an integer value is returned. If one or more of the values are floating-point numbers, a floating-point number is returned.

The previous version of PHP 4.2.1 modified the incoming array itself to convert the string values into numeric values (which in most cases were converted to 0, depending on the system).

Grammar
Array_sum (Array)
Parameter description
Array required. Specifies the input array.

The above mentioned five examples of array_sum functions, for everyone to learn the reference.

<?php $a =array (0=> "5",1=> ",2=>" 25 "); echo array_sum ($a);?> output: 45
<?php $a =array (0=>5,1=>15,2=>25); echo array_sum ($a);?> output: 45
<?php $a =array (0=>5,1=>15.5,2=>25); echo array_sum ($a);?> output: 45.5
<?php $a =array (0=>5,1=> "15s", 2=>25); echo array_sum ($a);?> output: 45
<?php $a =array (0=>5,1=> "s15s", 2=>25); echo array_sum ($a);?> output: 30

Believe that you have read the case of this article you have mastered the method, more exciting please pay attention to the PHP Chinese network other related articles!

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