520
Web Server Returned an Unknown Error
Specification of the HTTP status code 520
How to throw a 520 statuscode with PHP?
To throw the HTTP status code 520 on a web page, the PHP function http_response_code can be used. The syntax is as follows: http_response_code(520) (PHP 5 >= 5.4.0, PHP 7, PHP 8)
Test the 520 HTTP status code
In order to be able to display the HTTP status code (in this case 520 Web Server Returned an Unknown Error) and other information on the client side, the development console must be opened with F12. Afterwards you have to navigate to the tab "Network". Now you can open the page, in the network tab you should see the web page (example index.php). This must be selected and then the Herder section must be selected. Here the user will see the following result:
URL: https://http-statuscode.com/errorCodeExample.php?code=520
Status: 520 Web Server Returned an Unknown Error
Those: Network
IP address: XX.XX.XX.XX
Browser compatibility of the 520 status code
| Chrome | no data |
| Edge | no data |
| Firefox | no data |
| Opera | no data |
| Safari | no data |
| Chrome Android | no data |
| Firefox for Android | no data |
| Opera Android | no data |
| Safari on iOS | no data |
| Internet | no data |
| WebView Android | no data |
