3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function search($input) { $result = $input; for($a=0;$a<count($input);$a++) { for($b=0;$b<count($input);$b++) { $d=""; for($c=1;$c<$b;$c++) { print $input[$a+$c]; } $result[]= $d; } } foreach($input as $a) foreach($input as $b) $result[]= $a . $b; return array_filter(array_unique($result)); } print json_encode(search(["a", "b"])) . "\n"; print json_encode(search(["a", "b", "c"]));
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
{"0":"a","1":"b","6":"aa","7":"ab","8":"ba","9":"bb"} bc Notice: Undefined offset: 3 in /in/5O60L on line 14 {"0":"a","1":"b","2":"c","12":"aa","13":"ab","14":"ac","15":"ba","16":"bb","17":"bc","18":"ca","19":"cb","20":"cc"}
Output for hhvm-3.10.0 - 3.12.0
{"0":"a","1":"b","6":"aa","7":"ab","8":"ba","9":"bb"} bc Notice: Undefined index: 3 in /in/5O60L on line 14 {"0":"a","1":"b","2":"c","12":"aa","13":"ab","14":"ac","15":"ba","16":"bb","17":"bc","18":"ca","19":"cb","20":"cc"}
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/5O60L on line 27
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 '[', expecting ')' in /in/5O60L on line 27
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/5O60L on line 27
Process exited with code 255.