I have the two PHP loops as below:
foreach ($directData as $key => $val) {
echo $val;
echo "|"; //Just for the visual.
}
foreach ($sdata as $key => $val) {
echo $val;
echo "|"; //Just for the visual.
}
Which output:
5|5|5|10|10|10|0| and the second: 2|2|2|5|5|5|20|
My question is, how can I combine these two result (add them) and print it out like above?
So, it would be:
7|7|7|15|15|15|20
php > $a = [1, 2, 3];
php > $b = [4, 5, 6];
php > $c = array_map(function($x, $y){ return $x + $y; }, $a, $b);
php > print_r($c);
Array
(
[0] => 5
[1] => 7
[2] => 9
)
php > print_r(implode($c, '|') . '|');
5|7|9|
Broken down for better readability, this will sum them into $new array.
array_map will iterate through both given arrays and apply the callback function to both of the arrays at their current indexes. The callback function will sum the values of at current indexes.
$new=array_map(
function(){
return array_sum(func_get_args());
},
$directData, $sdata
);
$out= '';
foreach ($new as $key => $val)
$out .= $val.'|';
echo rtrim($out,'|');
in simple way you can do it like:
$finalData = array_map(function () {
return array_sum(func_get_args());
}, $directData, $sdata );
print_r($finalData );
If each index corresponds in the arrays
$rezult = array();
for($i=0;$i<count($directData);$i++){
$rezult[] = $directData[$i] + $sdata[$i];
}
echo join("|",$rezult);
Here is a method that uses the iterators that all PHP arrays have.
/**
* Use the iterator that all PHP arrays have.
*
* Check both arrays for having entries.
*/
$listOut = array(); // output in here
while (current($listA) !== false && current($listB) !== false) {
$listOut[] = current($listA) + current($listB);
next($listA);
next($listB);
}
Input:
$listA = array(5, 5, 5, 10, 10, 10, 0);
$listB = array(2, 2, 2, 5, 5, 5, 20, );
Output
Array
(
[0] => 7
[1] => 7
[2] => 7
[3] => 15
[4] => 15
[5] => 15
[6] => 20
)
7| 7| 7| 15| 15| 15| 20
