Online PHP editor | output for gRPe1

<?php $array = [[121,159,196],[121,159,196],[121,159,196],[121,159,196],[120,158,195],[119,157,194],[118,156,193],[117,155,192],[119,157,194],[118,156,193],[119,157,194],[121,159,196],[122,160,197],[122,160,197],[123,161,198],[124,162,199],[121,159,196],[122,160,197],[122,160,197],[123,161,198],[123,161,198],[123,161,198],[122,160,197],[122,160,197],[121,159,196],[121,159,196],[121,159,196],[121,159,196],[120,158,195],[120,158,195],[120,158,195],[120,158,195],[117,157,193],[118,158,194],[119,159,195],[119,159,195],[119,159,195],[119,159,195],[120,160,196],[121,161,197],[118,158,194],[118,158,194],[118,158,194],[119,159,195],[120,160,196],[121,161,197],[121,161,197],[120,160,196],[118,158,194],[118,158,194],[118,158,194],[117,157,193],[117,157,193],[117,157,193],[116,156,192],[116,156,192],[117,157,193],[117,157,193],[116,156,192],[117,157,193],[117,157,193],[118,158,194],[120,160,196],[120,160,196],[121,159,196],[121,159,196],[120,158,195],[120,158,195],[120,158,195],[119,157,194],[119,157,194],[119,157,194],[121,159,196],[120,158,195],[119,157,194],[118,156,193],[118,156,193],[119,157,194],[120,158,195],[121,159,196],[121,157,193],[121,157,193],[121,157,193],[121,157,193],[120,156,192],[120,156,192],[120,156,192],[120,156,192],[120,156,192],[121,157,193],[121,157,193],[122,158,194],[122,158,194],[121,157,193],[121,157,193],[120,156,192],[120,156,192],[120,156,192],[121,157,193],[121,157,193],[121,157,193],[121,157,193],[120,156,192],[120,156,192],[121,157,193],[122,158,194],[120,156,192],[120,156,192],[120,156,192],[119,155,191],[120,156,192],[119,155,191],[120,156,192],[121,157,193],[121,157,193],[120,156,192],[120,156,192],[120,156,192],[120,156,192],[119,155,191],[123,159,195],[123,159,195]]; $count_array = []; foreach($array as $item){ $key = json_encode($item); if(!isset($count_array[$key])){ $count_array[$key] =1 ; } else{ $count_array[$key]++; } } foreach ($count_array as $key => $val) { echo $key.": ".$val." times".PHP_EOL; }