3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = strrev('pɹoʍssɐd'); for ($i = 0; $i < strlen($str); $i++) echo 'a'.chr($str[i]); ?>
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 Warning: Illegal string offset 'i' in /in/HN9FS on line 4 a
Output for 4.3.0 - 5.3.29, hhvm-3.12.0
Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a Notice: Use of undefined constant i - assumed 'i' in /in/HN9FS on line 4 a
Output for hhvm-3.10.0

Process exited with code 153.