Grouping Array Elements by Column and Combining Values from Another Column
Given an array containing nested arrays with two columns, the task is to group the subarrays based on a specific column and concatenate the values from another column within each group, resulting in a comma-separated list.
Consider the following example array:
<code class="php">$array = [ ["444", "0081"], ["449", "0081"], ["451", "0081"], ["455", "2100"], ["469", "2100"] ];</code>
The desired result is:
<code class="php">[ ["444,449,451", "0081"], ["455,469", "2100"] ]</code>
One solution to this problem involves the following steps:
Iterate through the given array, and for each item:
The above is the detailed content of How to Group Array Elements and Combine Values from Another Column in a Multidimensional Array?. For more information, please follow other related articles on the PHP Chinese website!