php url_encode与url_decode的配合使用

url_encode ? url_decode ? PHP ????? URL ???????????????????????? URL ???????????????????????

1. url_encode:???????????? URL ????????????(???????)??? % ?????????,??? URL ????

??:

$string = "Hello, World!";
$encoded_string = urlencode($string);
echo $encoded_string; // ??:Hello,+World!

2. url_decode:???????? url_encode ?????????????????? % ???????????????????

??:

$encoded_string = "Hello,+World!";
$decoded_string = urldecode($encoded_string);
echo $decoded_string; // ??:Hello, World!

???? url_encode ? url_decode ???????????????????????????????????????? URL ?,???? url_encode ?????????,??????????????,???? url_decode ???????

??:

// ???
$search_query = "Hello, World!";
$encoded_query = urlencode($search_query);
$url = "https://example.com/search.php?q=" . $encoded_query;

// ??? (search.php)
$decoded_query = urldecode($_GET['q']);
echo $decoded_query; // ??:Hello, World!