php url_encode与解码技巧分享

? PHP ?,urlencode() ? urldecode() ????? URL ??????????????????? URL ??????,??????????????????

1. ?? urlencode() ? URL ????

?????????????????? URL ?,???? urlencode() ???????????:

$search_term = "PHP & MySQL";
$encoded_search_term = urlencode($search_term);
echo $encoded_search_term; // ??:PHP+&+MySQL

???????? + ??,?? & ????? &?

2. ?? urldecode() ? URL ????

???? URL ???????????,???? urldecode() ???????????:

$encoded_string = "PHP+&+MySQL";
$decoded_string = urldecode($encoded_string);
echo $decoded_string; // ??:PHP & MySQL

??? + ???????,?? & ??? & ???

3. ??? URL ??? http_build_query()

??????????????? URL ?,???? http_build_query() ?????????????????,?????? urlencode()???:

$params = [
    'search' => 'PHP & MySQL',
    'page' => 2,
];

$query_string = http_build_query($params);
echo $query_string; // ??:search=PHP+&+MySQL&page=2

???????????????,???????? URL ??

4. ?? $_GET ???? URL ??

????????????? URL ?,PHP ??????????????? $_GET ?????????,??????? urldecode()???:

// ?? URL ?:example.com/search.php?search=PHP+&+MySQL
echo $_GET['search']; // ??:PHP & MySQL

??????????? "PHP & MySQL"?

??,? PHP ??? URL ??????,???? urlencode()?urldecode()?http_build_query() ? $_GET ????????????????????? URL ???????