3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data_array = array('root1' => array(1,2,3), 'root2' => array(3,4,5)); $out = ''; foreach ($data_array as $key => $value) { $out.= $key.'=>['; foreach ($value as $val) { $out.=$val.','; } $out = rtrim($out, ","); $out.= '],<br />'; } $out = rtrim($out,','); echo $out;
Output for 4.3.0 - 4.3.11, 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, 5.5.0 - 5.5.35, 5.6.0 - 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
root1=>[1,2,3],<br />root2=>[3,4,5],<br />
preferences:
155.21 ms | 406 KiB | 360 Q