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<?php $photos = [ 'photo-Bname_0333.jpg', 'photo-Bname_0222.jpg', 'photo-Aname_0333.jpg', 'photo-Cname_0111.jpg', 'photo-Cname_0222.jpg', 'photo-Aname_0112.jpg', ]; usort($photos, function ($a, $b) { return array_reverse(explode('_', $a, 2)) <=> array_reverse(explode('_', $b, 2)); }); var_export($photos);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array ( 0 => 'photo-Cname_0111.jpg', 1 => 'photo-Aname_0112.jpg', 2 => 'photo-Bname_0222.jpg', 3 => 'photo-Cname_0222.jpg', 4 => 'photo-Aname_0333.jpg', 5 => 'photo-Bname_0333.jpg', )
preferences:
134.24 ms | 407 KiB | 5 Q