3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); $arr = []; for($i = 0; $i < 4; $i++) var_dump($arr[$i]);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Warning: Undefined array key 0 in /in/DJ4AI on line 6 NULL Warning: Undefined array key 1 in /in/DJ4AI on line 6 NULL Warning: Undefined array key 2 in /in/DJ4AI on line 6 NULL Warning: Undefined array key 3 in /in/DJ4AI on line 6 NULL
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
preferences:
86.55 ms | 407 KiB | 5 Q