How can multidimensional arrays in PHP be sorted based on specific criteria like date and price?

To sort multidimensional arrays in PHP based on specific criteria like date and price, you can use the `array_multisort()` function. This function allows you to sort multiple arrays or multidimensional arrays based on one or more criteria. You can specify the columns you want to sort by and the sorting order (ascending or descending). 

// Sample multidimensional array
$data = array(
    array('date' => '2022-01-15', 'price' => 100),
    array('date' => '2022-01-10', 'price' => 150),
    array('date' => '2022-01-20', 'price' => 120)
);

// Sort the array by date in ascending order
array_multisort(array_column($data, 'date'), SORT_ASC, $data);

// Sort the array by price in descending order
array_multisort(array_column($data, 'price'), SORT_DESC, $data);

// Print the sorted array
print_r($data);

Keywords

PHP multidimensional arrays sorting date price

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