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run code in 300+ PHP versions simultaneously
<?php $array = [ ["user", "date", "md5", "sha1"], ["user1", "02/02/15", "123456", "54321"], ["user1", "02/03/15", "123456", "54321"], ["user2", "02/02/15", "112233", "332211"], ["user2", "02/03/15", "112244", "332244"] ]; $result = []; foreach ($array as $row) { $result[array_shift($row)][array_shift($row)] = $row; } var_export($result);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 'user' => array ( 'date' => array ( 0 => 'md5', 1 => 'sha1', ), ), 'user1' => array ( '02/02/15' => array ( 0 => '123456', 1 => '54321', ), '02/03/15' => array ( 0 => '123456', 1 => '54321', ), ), 'user2' => array ( '02/02/15' => array ( 0 => '112233', 1 => '332211', ), '02/03/15' => array ( 0 => '112244', 1 => '332244', ), ), )
preferences:
109.3 ms | 1326 KiB | 4 Q