I am given a page url like 'http://abc.com/test.php?a=1&b=2&c=3'. Now I have been told to change the value of b to 5 so that it becomes 'http://abc.com/test.php?a=1&b=5&c=3'.
i.e change from http://abc.com/test.php?a=1&b=2&c=3 to http://abc.com/test.php?a=1&b=5&c=3
Note: variable b here can refer to any name.
You can have this .htaccess inside /project/ directory:
RewriteEngine On
RewriteBase /project/
# rewrite to folder/subfolder/
RewriteCond %{DOCUMENT_ROOT}/project/folder/subfolder/$1.php -f
RewriteRule ^(.+?)/?$ folder/subfolder/$1.php [L]
# rewrite to folder/
RewriteCond %{DOCUMENT_ROOT}/project/folder/$1.php -f
RewriteRule ^(.+?)/?$ folder/$1.php [L]
You can try something like this:
$test = preg_replace(
'~/w+/([w-]+)/?type=(w+)~i',
'/$2/$1/',
'/technic/k-700/?type=repair'
);
var_dump($test);
The result will be:
string(14) "/repair/k-700/"
You want to do something like this:
as_list = df.index.tolist()
idx = as_list.index('Republic of Korea')
as_list[idx] = 'South Korea'
df.index = as_list
Basically, you get the index as a list, change that one element, and the replace the existing index.
I'd use http_build_query, which nicely accepts an array of parameters and formats it correctly. You'd be able to unset the edit parameter from $_GET and push the rest of it into this function.
Note that your code has a missing call to htmlspecialchars(). A URL can contain characters that are active in HTML. So when outputting it into a link: Escape!
Some example:
unset($_GET['edit']); // delete edit parameter;
$_GET['pagenum'] = 5; // change page number
$qs = http_build_query($_GET);
... output link here.
Use
parse_url()to extract the query string from the URLparse_str()to split the query string into an arrayarray_merge()to add a new array"b" => 5http_build_query()to re-build a query stringThe remaining parts from the first step (protocol, host, path...) to re-build the full URL or - if you have the
HTTPpecl extension - ahttp_build_url()withHTTP_URL_JOIN_QUERYwill alleviate much of the work.