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run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = array( array('id' => 1, 'name' => 'John Snow', 'score' => 80), array('id' => 2, 'name' => 'John Fire', 'score' => 50), array('id' => 3, 'name' => 'John Water', 'score' => 79), array('id' => 4, 'name' => 'John Leaf', 'score' => 80), ); $scores = array(); foreach ($data as $v) $scores[$v['score']] = 1; // sort by keys krsort($scores); // assign proper ranks to each score $rank = 1; foreach ($scores as &$v) $v = $rank++; // assign ranks foreach ($data as &$v) $v['rank'] = $scores[$v['score']]; print_r($data);
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Array ( [id] => 1 [name] => John Snow [score] => 80 [rank] => 1 ) [1] => Array ( [id] => 2 [name] => John Fire [score] => 50 [rank] => 3 ) [2] => Array ( [id] => 3 [name] => John Water [score] => 79 [rank] => 2 ) [3] => Array ( [id] => 4 [name] => John Leaf [score] => 80 [rank] => 1 ) )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/16Q2f on line 19
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/16Q2f on line 19
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/16Q2f on line 19
Process exited with code 255.