How to use urlencode in PHP

In PHP, the urlencode function is used to encode special characters in a URL.

Here is how it is used:

$url = "https://example.com/?param1=Hello World&param2=123";

// 使用urlencode对URL进行编码
$encodedUrl = urlencode($url);

echo $encodedUrl;

The output is:

https%3A%2F%2Fexample.com%2F%3Fparam1%3DHello+World%26param2%3D123

In the example above, we first defined a URL string, then encoded the URL using the urlencode function and saved the result in the $encodedUrl variable. Finally, we used the echo statement to output the encoded URL.

Please note that the urlencode function will only encode certain characters, such as spaces being encoded as “+” or “%20”, while other special characters like slashes and colons will be encoded as their corresponding hexadecimal representation. If you need to encode the entire URL, you can use the urlencode function to encode each part of the URL separately.