3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('d'); echo "lalalaal"; ob_start(); header('e'); echo "heretoo"; $html = ob_get_contents(); ob_end_clean(); echo $html;
Output for 5.2.3 - 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 - 7.1.25, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
lalalaal Warning: Cannot modify header information - headers already sent by (output started at /in/phTBA:3) in /in/phTBA on line 5 heretoo
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 - 5.2.2
lalalaalheretoo

preferences:
233.72 ms | 402 KiB | 327 Q