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Thread: How do I get data from php array into clientside array ( maybe javascript ) ?

  1. #1
    Join Date
    May 2006
    Posts
    246

    How do I get data from php array into clientside array ( maybe javascript ) ?

    Hi,

    I have a mysql table contain a glossary
    which I would like to accesses from the webbrowser.

    The table is simple, just two columns so could be handled
    by an associatve array in php.

    So I guess I need to get the data into javascript or some
    other client-side code.

    The table contains about 2000 rows and I want to use it so that
    when the mouse hovers over a technical word, the glossary
    explanation is shown in a window.

    What route would you suggest ?


    Thanks.


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  2. #2
    Join Date
    Sep 2013
    Posts
    221
    store it as a simple javascript object:

    <script type="text/javascript">
    var obj = JSON.parse('<?php echo json_encode($my_arr,JSON_HEX_TAG|JSON_HEX_APOS); ?>');
    console.log(obj);
    </script>
    The above code works fine for to store a php array on the client side.

    Hope this helps you.
    strad solutionswww.stradsolutions.com

  3. #3
    Join Date
    May 2006
    Posts
    246
    Thanks for helping
    That looks good.

    Only thing is; I have not used javascript objects before so I am a bit in the dark.

    So when I have my object how would I use it ?
    Is it like a php array only in javascript ?

    do I use foreach() to list its rows ?

    what I need to do is grab the word that the mouse is
    hovering over and look it up in the "obj" index and
    display the associated string on the screen in a box
    (maybe a floating movable little window ?? )

    Where would I find the relevant js functions for that ?


    Thanks.


    .
    Last edited by jeddik; 11-23-2013 at 11:57 AM.
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  4. #4
    Join Date
    Dec 2011
    Location
    Centurion, South Africa
    Posts
    795
    You will need to loop through it like an array. JavaScript doesn't have a foreach keyword, but it can do a "for in" :

    Code:
    <script type="text/javascript">
    
    	var obj = {
    
    		member1 : 'value1',
    		another : 'another2',
    		data3   : 'datavalue3'
    
    	}, i;
    
    	for (i in obj) {if (obj.hasOwnProperty(i)) {
    
    		document.write(i + ' = ' + obj[i] + '<br />');
    
    	}}
    
    </script>
    Output

    Code:
    member1 = value1
    another = another2
    data3 = datavalue3
    Obviously you can build a better layout during the loop using html, assigning a title tag with the values could be a temporary solution as well.

    Believe it or not, I'm much better at JavaScript than PHP :P
    JavaScript: Learn | Validate | Compact | bionoid

  5. #5
    Join Date
    May 2006
    Posts
    246
    Thanks.

    I'll give it a try and come back when I get stuck !!!


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