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Thread: Ned help generating simple Javascript application to refine searches

  1. #1
    Join Date
    Apr 2013
    Posts
    23

    Ned help generating simple Javascript application to refine searches

    Hello friends and programmers ..

    I am trying to have a button that instantly refines my searches

    Something like

    Onclick("SELECT * FROM TBL WHERE Description LIKE $value")

    Is this something a newbie could pull of or does it require more than just working knowledge of PHP, MYSQL, and Javascript

    I have looked through Google, but have not found a good resource to base my script on.

    Thanks

  2. #2
    Join Date
    May 2006
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    this is not just a single button. you need a php file having the function which makes the sql query and outputs the result. this result is recieved by javascript and placed into the page.
    signature under construction

  3. #3
    Join Date
    Apr 2013
    Posts
    23

    Re:

    Does that method work with Pagination as well?

    My script looks something like

    <script>
    var form = document.getElementById('keywordForm');
    form.addEventListener('submit',function(e) {
    var search = form.keyword.value;
    var xhr = new XMLHttpRequest();
    xhr.open("GET","keywordsearch.php?search="+search,true);
    xhr.send();
    xhr.onreadystatechange = function() {
    if(xhr.readyState == 4 && xhr.status == 200) {
    var response = xhr.response;
    }
    };
    e.preventDefault();
    });

    This is a search - but it's not working

    Is there a mistake in my code?

  4. #4
    Join Date
    May 2006
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    try this

    PHP Code:
    <?php
    function markup(){
    echo 
    '
    <!DOCTYPE html>
    <html>
    <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>Search</title>
    <style type="text/css">
    body{color:#000;background-color:#fff;font-family:"Bookman Old Style",Georgia,Verdana;font-size:14px;text-align:center;margin:250px 0px 0px 0px;padding:0px 0px 0px 0px;}
    div{text-align:center;}
    #search{position:absolute;top:20px;right:10px;}
    #result{margin-top:30px;}
    input[type=text]{text-align:center;font-style:italic;font-weight:bold;letter-spacing:1px;}
    .btn{color:#000;font-weight:bold;border:none;background-color:transparent;cursor:pointer;margin-left:10px;margin-right:10px;}
    .r{color:Crimson;font-style:italic;}
    </style>
    <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
    <script type="text/javascript">
    $(document).ready(function(){
    var dummy="Type a keyword in the field above and click <b>Search</b>",
    fname=location.href.substring(location.href.lastIndexOf("/")+1,location.href.length);
    $("#res").click(function(){$("#kword").val("").focus();$("#result").html(dummy);});
    $("#subm").click(function(){
    if($("#kword").val()===""){$("#result").html("No keyword given");setTimeout(\'$("#res").click()\',2000);return;}
    else{
    $("#result").html("Searching...");
    $.get(fname,{mode:"ds",keyword:$("#kword").val()},function(data){$("#result").html(data);})
    }
    });
    $("#res").click();
    });
    </script>
    </head>
    <body>
    <div id="search">
    <input type="text" id="kword" placeholder="Type a keyword here" size="30" /><input type="button" class="btn" id="res" value="Reset" /><input type="button" class="btn" id="subm" value="Search" />
    </div>
    <div id="result"></div>
    </body>
    </html>
    '
    ;
    }

    function 
    dosearch(){
    $output='';
    if(isset(
    $_GET['keyword'])&&!empty($_GET['keyword'])){
    //here go your mysql query functions
    $output='<h3>Query results for " <span class="r">'.$_GET['keyword'].'</span> "</h3>';
    }
    else{
    $output='<h3>No keyword given</h3>';}
    echo 
    $output;
    }

    $mode=(!empty($_GET['mode']))?$_GET['mode']:$_POST['mode'];
    switch(
    $mode){
    case 
    'ds':dosearch();break;
    default:
    markup();
    }
    ?>
    signature under construction

  5. #5
    Join Date
    Apr 2013
    Posts
    23

    Re:

    Amazing., thanks

    I'm still trying to make it work with what I had in mind though

  6. #6
    Join Date
    May 2006
    Location
    Somewhere behind your screen
    Posts
    1,716
    good to hear that it was useful
    signature under construction

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