3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1, 55, 38, 38, 23, 22, 110, 1, 1, 2, 56, 15, 15, 78, 34); $curVal; foreach($array as $item) { if($item != $curVal) echo $item; echo '<br />'; $curVal = $item; }
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
Warning: Undefined variable $curVal in /in/GDqKm on line 9 1<br />55<br />38<br /><br />23<br />22<br />110<br />1<br /><br />2<br />56<br />15<br /><br />78<br />34<br />
Output for 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 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: curVal in /in/GDqKm on line 9 1<br />55<br />38<br /><br />23<br />22<br />110<br />1<br /><br />2<br />56<br />15<br /><br />78<br />34<br />
Output for 7.3.32 - 7.3.33, 7.4.26
1<br />55<br />38<br /><br />23<br />22<br />110<br />1<br /><br />2<br />56<br />15<br /><br />78<br />34<br />
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: curVal in /in/GDqKm on line 5 Notice: Undefined variable: curVal in /in/GDqKm on line 9 1<br />55<br />38<br /><br />23<br />22<br />110<br />1<br /><br />2<br />56<br />15<br /><br />78<br />34<br />
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: curVal in /in/GDqKm on line 5 Notice: Undefined variable: curVal in /in/GDqKm on line 9 1<br />55<br />38<br /><br />23<br />22<br />110<br />1<br /><br />2<br />56<br />15<br /><br />78<br />34<br />
preferences:
224.73 ms | 402 KiB | 312 Q