- var_export: documentation ( source)
- usort: documentation ( source)
<?php
$array = [
['Title' => 'rose', 'Price' => 1.25, 'Number' => '10'],
['Title' => 'daisy', 'Price' => 0.75, 'Number' => '1'],
['Title' => 'orchid', 'Price' => 1.15, 'Number' => '7']
];
usort($array, fn ($a, $b) => $a['Number'] <=> $b['Number']);
var_export($array);