3v4l.org

run code in 500+ PHP versions simultaneously
<?php $rows = [ ["code" => "1"], ["code" => "2"], ["code" => "3"], ["code" => "4"], ["code" => "5"], ["code" => "6"], ]; $sections = array_chunk($rows, 5); foreach ($sections as $section) { $teamList = implode(",", array_map(function($row) { return $row['code']; }, $section)); echo "<section>$teamList</section>"; }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
<section>1,2,3,4,5</section><section>6</section>

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1552.48 ms | 1258 KiB | 4 Q