


Transpose and Concatenate Multidimensional Array Elements
Given a two-dimensional array, the task is to transpose its elements, join elements within rows with commas, and join rows with pipes to create a single string.
Problem:
Consider the following two-dimensional array:
01 03 02 15 05 04 06 10 07 09 08 11 12 14 13 16
The goal is to convert this array into a string with the following format:
01,05,07,12|03,04,09,14|02,06,08,13|15,10,11,16
Solution:
To achieve this, we can follow these steps:
- Use foreach loop to iterate over each sub-array within the original array.
- Within each iteration, use implode() with a comma as the separator to concatenate the elements of the sub-array, creating a single string.
- Store the resulting strings in a temporary array.
- Finally, use implode() again with a pipe as the separator to concatenate the strings in the temporary array, creating the desired output string.
Here's a PHP code snippet that demonstrates the solution:
<code class="php">$array = array ( array ('01','03','02','15'), array ('05','04','06','10'), array ('07','09','08','11'), array ('12','14','13','16') ); $tmpArr = array(); foreach ($array as $sub) { $tmpArr[] = implode(',', $sub); } $result = implode('|', $tmpArr); echo $result;</code>
This code will output the desired string in the specified format.
The above is the detailed content of How to Transpose and Concatenate Elements in a Multidimensional Array?. For more information, please follow other related articles on the PHP Chinese website!

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