3v4l.org

run code in 300+ PHP versions simultaneously
<?php $index = [ 'hello' => true, 'world' => true, ]; $var = []; var_dump(isset($index[$var]));
Output for 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1
Fatal error: Uncaught TypeError: Cannot access offset of type array in isset or empty in /in/SYCun:8 Stack trace: #0 {main} thrown in /in/SYCun on line 8
Process exited with code 255.
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.
Output for 8.2.0 - 8.2.29
Fatal error: Uncaught TypeError: Illegal offset type in isset or empty in /in/SYCun:8 Stack trace: #0 {main} thrown in /in/SYCun on line 8
Process exited with code 255.

preferences:
70.32 ms | 408 KiB | 5 Q