Online PHP editor | output for g9SEP

Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13, 8.5.1: Fatal error: Uncaught Error: Call to undefined function iconv() in /in/g9SEP:8 Stack trace: #0 {main} thrown in /in/g9SEP on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 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: ASCII object(stdClass)#1 (1) { ["Foo"]=> string(3) "Bar" } Fatal error: Uncaught Error: Call to undefined function utf8_encode() in /in/g9SEP:12 Stack trace: #0 {main} thrown in /in/g9SEP on line 12
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 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: ASCII object(stdClass)#1 (1) { ["Foo"]=> string(3) "Bar" } Fatal error: Call to undefined function utf8_encode() in /in/g9SEP on line 12
Process exited with code 255.
Output for 5.4.0 - 5.4.45: Fatal error: Call to undefined function iconv() in /in/g9SEP on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: ASCII Fatal error: Call to undefined function json_decode() in /in/g9SEP on line 10
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: iconv() in /in/g9SEP on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: iconv() in /in/g9SEP on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: iconv() in /in/g9SEP on line 8