3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function getPairs(array $data) { if(!($end=$count($data))) { return null; } shuffle($data); $result = [[$data[0], $data[$end-1]]]; for($i=0; $i<$end-1; $i++) { $result[] = [$data[$i], $data[$i+1]]; } return $result; } $data = ['First', 'Second', 'Third', 'Fourth', 'Fifth', 'Sixth']; var_dump(getPairs($data));
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: count in /in/0qfHK on line 4 Fatal error: Uncaught Error: Function name must be a string in /in/0qfHK:4 Stack trace: #0 /in/0qfHK(18): getPairs(Array) #1 {main} thrown in /in/0qfHK on line 4
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Notice: Undefined variable: count in /in/0qfHK on line 4 Fatal error: Function name must be a string in /in/0qfHK on line 4
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/0qfHK on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/0qfHK on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/0qfHK on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/0qfHK on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/0qfHK on line 2
Process exited with code 255.