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run code in 200+ php & hhvm versions
Bugs & Features
<?php $abc = array( 'rec_1' => array('fn'=>'Aron','ln'=>'Michaels'), 'rec_2' => array('fn'=>'Abbey','ln'=>'Drake'), 'rec_3' => array('fn'=>'Alice','ln'=>'Peterson')); function build_sorter($key) { return function ($a, $b) use ($key) { return strcmp($a[$key], $b[$key]); }; } usort($abc, build_sorter('ln')); foreach ($abc as $item) { echo $item['f_name'] . ', ' . $item['ln'] . "\n"; }
based on uIQAu
Output for 5.3.0 - 7.2.0
Notice: Undefined index: f_name in /in/IcYLo on line 16 , Drake Notice: Undefined index: f_name in /in/IcYLo on line 16 , Michaels Notice: Undefined index: f_name in /in/IcYLo on line 16 , Peterson
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/IcYLo on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/IcYLo on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IcYLo on line 8
Process exited with code 255.