Tools, FAQ, Tutorials:
Protecting Special Characters in Query String in PHP
How To Protect Special Characters in Query String in PHP?
✍: FYIcenter.com
If you want to include special characters like spaces in the query string, you need to protect them by applying the urlencode() translation function. The script below shows how to use urlencode():
<?php print("<html>"); print("<p>Please click the links below" ." to submit comments about FYICenter.com:</p>"); $comment = 'I want to say: "It\'s a good site! :->"'; $comment = urlencode($comment); print("<p>" ."<a href=\"processing_forms.php?name=Guest&comment=$comment\">" ."It's an excellent site!</a></p>"); $comment = 'This visitor said: "It\'s an average site! :-("'; $comment = urlencode($comment); print("<p>" .'<a href="/processing_forms.php?'.$comment.'">' ."It's an average site.</a></p>"); print("</html>"); ?>
If you copy this script as submit_comments.php to your Web server, and click the first link, you will get:
query_string = name=Guest&comment= I+want+to+say%3A+%22It%27s+a+good+site%21+%3A-%3E%22 Number of values: 2 name = Guest comment = I want to say: "It's a good site! :->"
If you click the second link, you will get:
query_string = This+visitor+said%3A+%22It%27s+an+average+site%21+%3A-%28%22 Number of values: 1 This_visitor_said:_\"It\'s_an_average_site!_:-(\" =
Now you know that urlencode() all special characters into HEX numbers. To translate them back, you need to apply urldecode().
⇒ Supporting a Multiple-Page Form in PHP
2022-09-09, 3599👍, 1💬
Popular Posts:
How to use the "set-body" Policy Statement for an Azure API service operation? The "set-body" Policy...
How to Install Docker Desktop 2.5.0 on Windows 10? You can follow this tutorial to Install Docker De...
How to dump (or encode, serialize) a Python object into a JSON string using json.dumps()? The json.d...
Where to get the detailed description of the json_encode() Function in PHP? Here is the detailed des...
How to use the Atom Online Validator at w3.org? w3.org feed validation service is provided at http:/...