PHPBuilder - Remote Scripting with Javascript, IFrames and PHP Page 7



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Remote Scripting with Javascript, IFrames and PHP - Page 7

by: David Vance
|
May 10, 2004

This should be pretty straightforward. I check for the search term, and call the searchFromJs() funciton if needed. In the searchFromJs() function, I'm merely building a string containing the database records. The records are separated by pipes: "|", and the fields are delimited by tildes: "~". I clean up the string a bit and return it.
The HTML portion of the page is nothing but basic Javascript, so that when the page is loaded (remember, it's a hidden IFrame), it calls the handleResponse() Javascript function in it's parent page (search.php). In the process, it encodes the string. (Not doing this was actually an undiscovered bug in my application, causing the string to be truncated in certain cases.)
Let's look at that handleResponse() function now. It looks like this:

<?php

function handleResponse(str
{
    var 
theString decodeURIComponent(str);

    if(
theString == 'No Results' || theString.indexOf('~') == -1
    {
        return;
    }
    var 
= new getObj('listAsStrng');
    
l.obj.value str;
   
    var list = 
arrayFromString(theString,'|');
    var 
opts '';
  
    for(
i=0< list.lengthi++)
    {
        
rec = Array();
        
rec = list[i].split('~');
        
opts opts '<option value="' rec[0] +'">' rec[1] + ' ' rec[2];
    }
    var 
sp = new getObj('spanSelect');
    
sp.obj.innerHTML '<select name="names" id="searchSelect">'+opts+'</select>';
    var 
= new getObj('searchButton');
    
b.obj.disabled false;
}

?>

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