3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Derp implements Iterator { protected $index; protected $array; public function __construct(array $input) { $this->array = $input; } public function current() { return $this->array[$this->index]; } public function next() { $this->index += 1; } public function key() { return $this->index; } public function valid() { return isset($this->array[$this->index]); } public function rewind() { $this->index = 0; } } $d = new Derp(range(1,100)); echo is_array($d) ? 'Not an array' : 'It\'s an array!'; foreach($d as $key => $value) { echo "$key => $value\n"; }
Output for 5.1.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
It's an array!0 => 1 1 => 2 2 => 3 3 => 4 4 => 5 5 => 6 6 => 7 7 => 8 8 => 9 9 => 10 10 => 11 11 => 12 12 => 13 13 => 14 14 => 15 15 => 16 16 => 17 17 => 18 18 => 19 19 => 20 20 => 21 21 => 22 22 => 23 23 => 24 24 => 25 25 => 26 26 => 27 27 => 28 28 => 29 29 => 30 30 => 31 31 => 32 32 => 33 33 => 34 34 => 35 35 => 36 36 => 37 37 => 38 38 => 39 39 => 40 40 => 41 41 => 42 42 => 43 43 => 44 44 => 45 45 => 46 46 => 47 47 => 48 48 => 49 49 => 50 50 => 51 51 => 52 52 => 53 53 => 54 54 => 55 55 => 56 56 => 57 57 => 58 58 => 59 59 => 60 60 => 61 61 => 62 62 => 63 63 => 64 64 => 65 65 => 66 66 => 67 67 => 68 68 => 69 69 => 70 70 => 71 71 => 72 72 => 73 73 => 74 74 => 75 75 => 76 76 => 77 77 => 78 78 => 79 79 => 80 80 => 81 81 => 82 82 => 83 83 => 84 84 => 85 85 => 86 86 => 87 87 => 88 88 => 89 89 => 90 90 => 91 91 => 92 92 => 93 93 => 94 94 => 95 95 => 96 96 => 97 97 => 98 98 => 99 99 => 100
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/MRS3A on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/MRS3A on line 3
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_STRING, expecting '{' in /in/MRS3A on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/MRS3A on line 3
Process exited with code 255.