<?php function cmp($a, $b) { if($a->date == $b->date) { return 0; } return ($a->date < $b->date) ? -1 : 1; } $images = array(); $i1 = new ImageMetadata("2", "3", "3"); $i2 = new ImageMetadata("2", "1", "3"); $i3 = new ImageMetadata("2", "2", "3"); array_push($images, $i1); array_push($images, $i2); array_push($images, $i3); usort($images, "cmp"); echo json_encode($images); ?>
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