PHP array function sequence array_sum() - Calculate the sum of array element values_PHP tutorial

array_sum() definition and usage
array_sum() function returns the sum of all values ​​in the array.

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

Pre-PHP 4.2.1 versions modified the passed array itself, converting the string values ​​in it to numeric values ​​(or zeros in most cases, depending on the system).

Syntax
array_sum(array)
Parameter Description
array Required. Specifies the input array.

Example 1

Copy code The code is as follows:

$a= array(0=>"5",1=>"15",2=>"25");
echo array_sum($a);
?>

Output:

45
Example 2

Copy code The code is as follows:

< ?php
$a=array(0=>5,1=>15,2=>25);
echo array_sum($a);
?>

Output:

45
Example 3

Copy code The code is as follows:

$a=array(0=>5,1=>15.5,2=>25);
echo array_sum($a);
?>

Output:

45.5
Example 4

Copy code The code is as follows:

$a=array(0=>5,1=>"15s",2=>25);
echo array_sum($a);
?> ;

Output:

45
Example 5

Copy code The code is as follows:

$a=array(0=>5,1=>"s15s",2=>25);
echo array_sum($a);
?>

Output:

30

http://www.bkjia.com/PHPjc/324490.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/324490.htmlTechArticlearray_sum() definition and usage array_sum() function returns the sum of all values ​​in the array. If all values ​​are integers, an integer value is returned. If one or more of the values ​​is a floating point number...