<?php $data = array( array('id' => 1, 'price' => 100), array('id' => 7, 'price' => 100.3), array('id' => 5, 'price' => 100.2), ); uasort($data, function ($a, $b) { return $a['price'] - $b['price']; }); var_dump($data); uasort($data, function ($a, $b) { return $a['price'] <=> $b['price']; }); var_dump($data);
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