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  • Display All URL Variables
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  • Read all variables being passed by a form method=get or links where variables are written after the document extension. Regardless of the method employed, the result will be the same, a document with an address similar to document_name.html?a=1&b=2. By identifying where in the URL the question mark is and splitting all the text to the right of the question mark into an array. All the variables being passed can easily be displayed. On the first iteration no values are being passed, so a message reflecting that is displayed. Click on either the link or enter some text into the text box and click submit for a more complete demonstration. Also, please note this will not work unless the document resides on a server.
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    <html>
    <title>CodeAve.com(JavaScript: Display All URL Variables)</title>
    <body bgcolor="#FFFFFF">


    <script language="JavaScript">
    <!--
    // Create variable is_input to see if there is a ? in the url
    var is_input = document.URL.indexOf('?');

    // Check the position of the ? in the url
    if (is_input != -1)

    // Create variable from ? in the url to the end of the string
    addr_str = document.URL.substring(is_input+1, document.URL.length);

    // Loop through the url and write out values found
    // or a line break to seperate values by the &
    for (count = 0; count < addr_str.length; count++) 
    {

    if (addr_str.charAt(count) == "&") 
    // Write a line break for each & found
    {document.write ("<br>");}

    else 
    // Write the part of the url 
    {document.write (addr_str.charAt(count));}

    }}

    // If there is no ? in the url state no values found
    else
    {document.write("No values detected");}

    -->
    </script>



    </body>
    </html>

     

     

     



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