3v4l.org

run code in 300+ PHP versions simultaneously
<?php $subdir = 'rasmus'; $file = 'phpfi'; define('DIR', __DIR__); echo "${DIR}/{$subdir}/{$file}\n"; echo "${ DIR }/{$subdir}/{$file}\n"; ?>
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/XiXv0 on line 8 Deprecated: Using ${expr} (variable variables) in strings is deprecated, use {${expr}} instead in /in/XiXv0 on line 10 Warning: Undefined variable $DIR in /in/XiXv0 on line 8 /rasmus/phpfi Warning: Undefined variable $/in in /in/XiXv0 on line 10 /rasmus/phpfi
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
Warning: Undefined variable $DIR in /in/XiXv0 on line 8 /rasmus/phpfi Warning: Undefined variable $/in in /in/XiXv0 on line 10 /rasmus/phpfi
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: DIR in /in/XiXv0 on line 8 /rasmus/phpfi Notice: Undefined variable: /in in /in/XiXv0 on line 10 /rasmus/phpfi
Output for 7.3.32 - 7.3.33
/rasmus/phpfi /rasmus/phpfi

preferences:
155.02 ms | 401 KiB | 212 Q