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<?php $rows = [ ['id' => 1, 'name' => 'foo', 'year' => 2017, 'month' => 1, 'value' => 'bar1'], ['id' => 2, 'name' => 'foo', 'year' => 2017, 'month' => 2, 'value' => 'bar2'], ['id' => 3, 'name' => 'foo', 'year' => 2017, 'month' => 3, 'value' => 'bar3'], ['id' => 4, 'name' => 'foo', 'year' => 2017, 'month' => 4, 'value' => 'bar4'], ]; $data = []; foreach($rows as $row) { $key = $row['name'] . '_' . $row['year']; if(!isset($data[$key])){ $data[$key] = array( 'id' => $row['id'], 'name' => $row['name'], 'year' => $row['year'], ); } $month = 'month' . $row['month']; $data[$key][$month] = $row['value']; } print_r($data);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Array ( [foo_2017] => Array ( [id] => 1 [name] => foo [year] => 2017 [month1] => bar1 [month2] => bar2 [month3] => bar3 [month4] => bar4 ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/KvCD5 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/KvCD5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/KvCD5 on line 3
Process exited with code 255.

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