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How Can I Restructure a 2D PHP Array into a 3D Array by Machine and Ordered Jobs?

Susan Sarandon
Release: 2024-12-12 17:14:11
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How Can I Restructure a 2D PHP Array into a 3D Array by Machine and Ordered Jobs?

Restructuring a Multidimensional Array in PHP

In the given query, the goal is to transform a 2D array into a 3D array where each element represents a machine and contains its associated jobs arranged in ascending order based on their original key. Here's how this can be achieved in PHP:

We begin by initializing an empty array called $result that will hold the restructured data. Then, we iterate through the original array, $MainArray, using a foreach loop.

For each record in $MainArray, we extract the Machine_Name value and use it as the key for a sub-array within $result. If an entry for that machine doesn't exist in $result, it will be created with an empty array.

We then append the current record to the sub-array associated with the Machine_Name. This effectively groups all jobs related to the same machine together.

To ensure the jobs are arranged in the desired order, we sort each sub-array in ascending order of the original key using the ksort function. The result is stored back into the $result array.

The code below demonstrates this process:

$result = [];
foreach ($MainArray as $record) {
    $result[$record['Machine_Name']][] = $record;
}

foreach ($result as $machine => $jobs) {
    ksort($result[$machine]);
}
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This code will produce a 3D array, $result, where the first dimension represents machines and the second dimension contains an ordered list of jobs associated with each machine.

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source:php.cn
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