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<?php $data['names'] = 'alex,daniel,obama,alex,alex,alex,diana'; $names = array_unique(explode(',', $data['names'])); $count = count($names); $names = implode(',', $names); echo "$count names: $names\n";
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 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
4 names: alex,daniel,obama,diana

preferences:
160.39 ms | 407 KiB | 5 Q