3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function getPortion($products, $page, $per_page) { $index = $page * $per_page; // to get always positive module $real_index = ($index % sizeof($products) + sizeof($products)) % sizeof($products); $return = array_slice($products, $real_index, $per_page); while (sizeof($return) < $per_page) { $return = array_merge($return, array_slice($products, 0, $per_page - sizeof($return))); } return $return; } $products = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k'); // 0 page echo json_encode(getPortion($products, 0, 3)); // ["a","b","c"] // 3 page echo json_encode(getPortion($products, 3, 3)); // ["j","k","a"] // -1 page echo json_encode(getPortion($products, -1, 3)); // ["i","j","k"] // 0 page, but per_page larger than array length. echo json_encode(getPortion(array('a', 'b', 'c'), 0, 5)); // ["a","b","c","a","b"]
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
["a","b","c"]["j","k","a"]["i","j","k"]["a","b","c","a","b"]
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/l8JGB on line 21
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/l8JGB on line 34
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/l8JGB on line 21
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/l8JGB on line 21
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/l8JGB on line 21