3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = '<set1> <uid1>Line 1 Line 2 Line 3 Line 4 </uid1> <uid20>Line 1 Line 2 Line 3 Line 4 </uid20> </set1> <set2> <uid1>Line 1 Line 2 Line 3 Line 4 </uid1> <uid20>Line 1 Line 2 Line 3 Line 4 </uid20> </set2>'; $xml = preg_replace('/<uid1>#([\n])<\/uid1>/', 'dee', $xml); //preg_match('/<uid1>#([\n])<\/uid1>/', $file, $match); echo $xml;
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<set1> <uid1>Line 1 Line 2 Line 3 Line 4 </uid1> <uid20>Line 1 Line 2 Line 3 Line 4 </uid20> </set1> <set2> <uid1>Line 1 Line 2 Line 3 Line 4 </uid1> <uid20>Line 1 Line 2 Line 3 Line 4 </uid20> </set2>

preferences:
200.71 ms | 404 KiB | 287 Q