3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'bar'; var_dump("\{$foo}");
Output for 5.4.38, 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(6) "\{bar}"
Output for 4.3.2
string(5) "{bar}"
preferences:
117.23 ms | 406 KiB | 5 Q