Online PHP editor | output for 3hEg4

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 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: array ( 1 => (object) array( 'title' => 'Section', 'linked' => 1, ), 2 => (object) array( 'title' => 'Sub-Section', 'linked' => 1, ), 3 => (object) array( 'title' => 'Sub-Sub-Section', 'linked' => 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.
Output for 7.2.0 - 7.2.33: array ( 1 => stdClass::__set_state(array( 'title' => 'Section', 'linked' => 1, )), 2 => stdClass::__set_state(array( 'title' => 'Sub-Section', 'linked' => 1, )), 3 => stdClass::__set_state(array( 'title' => 'Sub-Sub-Section', 'linked' => NULL, )), )