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rajiv
answered Feb 27 '23 00:00
In PHP, you can use the array_multisort() function to sort a multidimensional array based on one or more columns. Here's an example of how to sort a multidimensional array by a specific column:
<?php
// Sample multidimensional array
$data = array(
array('name' => 'John', 'age' => 32),
array('name' => 'Jane', 'age' => 28),
array('name' => 'Bob', 'age' => 42),
array('name' => 'Alice', 'age' => 21)
);
// Sort the array by the 'age' column
$ages = array_column($data, 'age');
array_multisort($ages, SORT_ASC, $data);
// Print the sorted array
print_r($data);
?>
In this example, we first define a multidimensional array with two columns: name and age. We then use the array_column() function to extract the age column into a separate array, which we can then use as the first parameter to array_multisort(). The second parameter specifies the sort order (SORT_ASC for ascending order), and the third parameter is the original array that we want to sort.
The resulting sorted array will be:
Array
(
[0] => Array
(
[name] => Alice
[age] => 21
)
[1] => Array
(
[name] => Jane
[age] => 28
)
[2] => Array
(
[name] => John
[age] => 32
)
[3] => Array
(
[name] => Bob
[age] => 42
)
)
This example sorts the array by a single column, but you can also sort by multiple columns by passing multiple arrays to array_multisort().