Transpose a 2D Array, Merge Elements within Rows, and Concatenate Rows

You have a two-dimensional array and need to transform it into a string that follows a specific format. Let's delve into the steps involved:

Transposing the Array

To switch the rows of the array into columns, we use a nested loop that iterates through each element in the array:

$transposedArray = [];
for ($j = 0; $j 
Merging Elements within Rows
Next, we need to combine the elements within each row into a single string, separated by commas:
$mergedRows = [];
foreach ($transposedArray as $row) {
    $mergedRows[] = implode(',', $row);
}
Concatenating Rows
Finally, we concatenate the merged rows into a single string, separating them with pipes:
$result = implode('|', $mergedRows);
Putting it all together, you can use this code to perform the transformations:
$transposedArray = [];
for ($j = 0; $j 
This will produce the desired string in the format you specified.