Home  >  Article  >  Backend Development  >  How to Transform a 2D Array into a String with Transposition, Merging, and Concatenation?

How to Transform a 2D Array into a String with Transposition, Merging, and Concatenation?

Mary-Kate Olsen
Mary-Kate OlsenOriginal
2024-10-31 06:59:01943browse

How to Transform a 2D Array into a String with Transposition, Merging, and Concatenation?

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:

<code class="php">$transposedArray = [];
for ($j = 0; $j < count($array[0]); $j++) {
    for ($i = 0; $i < count($array); $i++) {
        $transposedArray[$j][] = $array[$i][$j];
    }
}</code>

Merging Elements within Rows

Next, we need to combine the elements within each row into a single string, separated by commas:

<code class="php">$mergedRows = [];
foreach ($transposedArray as $row) {
    $mergedRows[] = implode(',', $row);
}</code>

Concatenating Rows

Finally, we concatenate the merged rows into a single string, separating them with pipes:

<code class="php">$result = implode('|', $mergedRows);</code>

Putting it all together, you can use this code to perform the transformations:

<code class="php">$transposedArray = [];
for ($j = 0; $j < count($array[0]); $j++) {
    for ($i = 0; $i < count($array); $i++) {
        $transposedArray[$j][] = $array[$i][$j];
    }
}

$mergedRows = [];
foreach ($transposedArray as $row) {
    $mergedRows[] = implode(',', $row);
}

$result = implode('|', $mergedRows);</code>

This will produce the desired string in the format you specified.

The above is the detailed content of How to Transform a 2D Array into a String with Transposition, Merging, and Concatenation?. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn