Add numbers in array

Hello,

Let's stay I have an array with only numbers. How can I add them up so I have them in one variable. So like I can have:

$total_value_of_array

Thank You!

 

<?php
$numArray = array(1,2,3,4,5,6);
$total_value_of_array = "";
foreach($numArray as $x)
{
	$total_value_of_array.=$x;
}
echo ($total_value_of_array);
?>

PHP:

 

that does not do anything, it just lists numbers 1 through 6.

also, what if i did not no the number of numbers there were going to be, not just a set number of keys

 

I dont understand you...
You have an array of numbers. By foreach you get all your array variables in one variable. If you want sum of this variables:

<?php
$numArray = array(1,2,3,4,5,6);
$total_value_of_array = 0;
foreach($numArray as $x)
{
    $total_value_of_array+=$x;
}
echo ($total_value_of_array);
?>

PHP:

 

You can also use these alternatives:

$ar = array(3,4,6,2,6,4,24,3,34,32,19);

// #1 - join
$str1 = join('.', $ar);
// split('.', $ar) to decode back to array

// #2 - serialize
$str2 = serialize($ar);
// unserialize($str2) to decode

// #3 - json
$str3 = json_encode($ar);
// json_decode($str3) to decode

Code (markup):

 

Would be so much easier if you just did this.

$sum = array_sum($array_name);

the function array_sum calculates the sum of all the values in an array. All this splitting, looping etc is a waste of lines.