3v4l.org

run code in 300+ PHP versions simultaneously
<?php $y[0] = 'Good'; $y[1] = ' morning!'; echo "${y[0]}${y[1]}"; echo "${y[0]}${y[1]}";
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/LWj6H on line 5 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/LWj6H on line 5 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/LWj6H on line 6 Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/LWj6H on line 6 Good morning!Good morning!
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Good morning!Good morning!
preferences:
175.03 ms | 403 KiB | 180 Q