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<?php $rows = [['size' => 'XL,L,XXL'], ['size' => 'XL'], ['size' => 'M,L,XL'], ['size' => 'L,XL,M']]; // while ($srow = $result->fetch_assoc()) { foreach ($rows as $srow) { $sizes[] = $srow['size']; // do other stuff with fetched data // ... } $sizes = array_unique(array_map('trim', explode(',', implode(',', $sizes)))); sort($sizes); $string = implode(',', $sizes); echo $string;
Output for git.master, git.master_jit, rfc.property-hooks
L,M,XL,XXL

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