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Thread: Sending large amounts of text to PHP via GET

  1. #1
    Join Date
    Jun 2010
    Posts
    4

    Sending large amounts of text to PHP via GET

    Hey guys! So I have kind of a weird question:

    I've written some code that uses XMLHttpRequest(); to get data from a page on my server. It stores the response text in a variable, like so: resp=x.responseText;

    I can use "alert(resp);" to view the text and I know it's working correctly.

    My question is this: I want to then send this response text to another .php page, kind of like this: "http://www.example.com/test.php?c="+resp

    However, because the response text has HTML code in it, as well as line breaks (\n) and other weird stuff, my test.php file isn't getting the data correctly. Do I have to like santize the "resp" string using some kind of HTML character conversion code or something? Do you have any suggestions?

    Similar/related question: is there a way to just cut the "resp" content to the first like 200 characters? It responds with a ton of crap, which I really don't need beyond the first 200-300 characters or so.
    Last edited by icydash; 09-15-2012 at 06:47 PM.

  2. #2
    Join Date
    Mar 2011
    Posts
    1,108
    You should use urlencode() on all such strings before using them in a query string, and you could use substr() to adjust the length. But you could avoid all the hassle by just using POST instead of GET.
    Rick Trethewey
    Rainbo Design

  3. #3
    Join Date
    Jun 2010
    Posts
    4
    Thanks for your response.

    Is it just urlencode(str)? I also did some search and noticed there is encodeURIComponent() and encodeURI(). What are the differences between these three?

    How can I use POST instead of GET if I'd be sending the user to the website "http://www.example.com/test.php?c="+resp ?

  4. #4
    Join Date
    Oct 2010
    Location
    Versailles, France
    Posts
    1,252
    With javascript the GET form is http://www.example.com/test.php?c="+encodeURIcomponent(rsp), to use without urldecode (See this page) . But «The get method is not suitable for very large variable values. It should not be used with values exceeding 2000 characters.» (See W3cscholls.com).

    You can use a form with the POST method and an text or hidden type input.

  5. #5
    Join Date
    Mar 2009
    Posts
    452
    is it really a requirement to involve javascript or client side scripting. if you only want to send out put to some different php script you can do it directly.

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