Editing Troubleshooting of curl errors

[https://curl.haxx.se/ curl] "is used in command lines or scripts to transfer data."[https://curl.haxx.se/]

== How to resolve cUrl error (#5): Unsupported proxy syntax ==
Condition: the username of [https://en.wikipedia.org/wiki/SOCKS socks5 proxy] contains @ symbol such as {{kbd | key=<nowiki>bob@email.com</nowiki>}}
<pre>
curl_setopt($ch, CURLOPT_PROXY, 'socks5://username:password@localhost:12345');
// result is ok

curl_setopt($ch, CURLOPT_PROXY, 'socks5://bob@email.com:password@localhost:12345');
// met cUrl error (#5): Unsupported proxy syntax
</pre>

Solution: Escape the special symbol<ref>[https://superuser.com/questions/937124/log-in-to-ftp-using-windows-explorer-with-in-the-username Log in to FTP using Windows Explorer with @ in the username - Super User]</ref> using [https://www.urlencoder.org/ URL Encode and Decode - Online] or [https://www.php.net/manual/en/function.urlencode.php urlencode] function
<pre>
curl_setopt($ch, CURLOPT_PROXY, 'socks5://bob%40email.com:password@localhost:12345');
// result is ok
</pre>


== References ==
<references />

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