Online PHP editor | output for ULLK2

Output for 5.1.4 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: string(14) ""a""b","a\"b" "
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(14) ""a""b","a\"b" "
Output for 5.1.0 - 5.1.3: Warning: fopen(php://memory): failed to open stream: Inappropriate ioctl for device in /in/ULLK2 on line 4 Warning: fputcsv() expects parameter 1 to be resource, boolean given in /in/ULLK2 on line 5 Warning: rewind(): supplied argument is not a valid stream resource in /in/ULLK2 on line 6 Warning: stream_get_contents() expects parameter 1 to be resource, boolean given in /in/ULLK2 on line 7 bool(false) Warning: fclose(): supplied argument is not a valid stream resource in /in/ULLK2 on line 8
Output for 5.0.0 - 5.0.5: Warning: fopen(php://memory): failed to open stream: Inappropriate ioctl for device in /in/ULLK2 on line 4 Fatal error: Call to undefined function fputcsv() in /in/ULLK2 on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Warning: fopen(php://memory): failed to open stream: Success in /in/ULLK2 on line 4 Fatal error: Call to undefined function: fputcsv() in /in/ULLK2 on line 5
Process exited with code 255.
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.4: Warning: fopen(php://memory): failed to open stream: Success in /in/ULLK2 on line 4 Fatal error: Call to undefined function: fputcsv() in /in/ULLK2 on line 5
Process exited with code 255.
Output for 4.3.2: Warning: fopen(php://memory): failed to open stream: Inappropriate ioctl for device in /in/ULLK2 on line 4 Fatal error: Call to undefined function: fputcsv() in /in/ULLK2 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Warning: fopen(php://memory) [http://www.php.net/function.fopen]: failed to create stream: Inappropriate ioctl for device in /in/ULLK2 on line 4 Fatal error: Call to undefined function: fputcsv() in /in/ULLK2 on line 5