3v4l.org

run code in 300+ PHP versions simultaneously
<?php $posts = array('post1', 'post2', 'post3', 'post4', 'post5', 'post6', 'post7', 'post8', 'post9'); // one foreach to divide posts $col = 1; foreach($posts as $post) { $cols[$col] = $post; $col = $col == 4 ? 1 : $col+1; } // then, another foreach for the html foreach($cols as $col) { // open col div echo "<div>"; foreach($col as $post) { // print post echo "$post,"; } // close col div echo "</div>"; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<div> Warning: foreach() argument must be of type array|object, string given in /in/nov9k on line 13 </div><div> Warning: foreach() argument must be of type array|object, string given in /in/nov9k on line 13 </div><div> Warning: foreach() argument must be of type array|object, string given in /in/nov9k on line 13 </div><div> Warning: foreach() argument must be of type array|object, string given in /in/nov9k on line 13 </div>
Output for 4.3.0 - 4.3.10, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
<div> Warning: Invalid argument supplied for foreach() in /in/nov9k on line 13 </div><div> Warning: Invalid argument supplied for foreach() in /in/nov9k on line 13 </div><div> Warning: Invalid argument supplied for foreach() in /in/nov9k on line 13 </div><div> Warning: Invalid argument supplied for foreach() in /in/nov9k on line 13 </div>
Output for 4.3.11
<div></div><div></div><div></div><div></div>

preferences:
254.1 ms | 401 KiB | 328 Q