Online PHP editor | output for juTLR

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: get_headers(): php_network_getaddresses: getaddrinfo for www.computer.org failed: System error in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): Failed to open stream: php_network_getaddresses: getaddrinfo for www.computer.org failed: System error in /in/juTLR on line 4 bool(false)
Output for 8.0.13 - 8.0.30: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: System error in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): Failed to open stream: php_network_getaddresses: getaddrinfo failed: System error in /in/juTLR on line 4 bool(false)
Output for 8.0.0 - 8.0.12: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): Failed to open stream: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /in/juTLR on line 4 bool(false)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.3.32 - 7.3.33, 7.4.0 - 7.4.1, 7.4.26 - 7.4.33: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: System error in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): failed to open stream: php_network_getaddresses: getaddrinfo failed: System error in /in/juTLR on line 4 bool(false)
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.25: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): failed to open stream: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /in/juTLR on line 4 bool(false)
Output for 5.2.6 - 5.2.17: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): failed to open stream: php_network_getaddresses: getaddrinfo failed: Name or service not known in /in/juTLR on line 4 bool(false)
Output for 5.2.3 - 5.2.5: Warning: get_headers(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html): failed to open stream: Connection refused in /in/juTLR on line 4 bool(false)
Output for 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2: Warning: get_headers() [<a href='function.get-headers'>function.get-headers</a>]: php_network_getaddresses: getaddrinfo failed: Name or service not known in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html) [<a href='function.get-headers'>function.get-headers</a>]: failed to open stream: Connection refused in /in/juTLR on line 4 bool(false)
Output for 5.0.1 - 5.0.2: Warning: get_headers() [<a href='function.get-headers'>function.get-headers</a>]: php_network_getaddresses: gethostbyname failed in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html) [<a href='function.get-headers'>function.get-headers</a>]: failed to open stream: Success in /in/juTLR on line 4 bool(false)
Output for 5.0.0: Warning: get_headers() [<a href='function.get-headers'>function.get-headers</a>]: php_network_getaddresses: gethostbyname failed in /in/juTLR on line 4 Warning: get_headers(http://www.computer.org/csdl/proceedings/icde/2011/8959/00/05767935-abs.html) [<a href='function.get-headers'>function.get-headers</a>]: failed to open stream: Bad file descriptor in /in/juTLR on line 4 bool(false)
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: get_headers() in /in/juTLR on line 4 
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: get_headers() in /in/juTLR on line 4 
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: get_headers() in /in/juTLR on line 4