CODEWITHSUNDEEP
phpjavascript
mingfish_004
mingfish_004

Reputation: 1413

how to process an array as get str to url?

how to process an array as get str to url?
I want to send an array to my PHP page as get prometers , don't care about how long the get str , it is only use in my site admin side. what should I process the array to a sting ,when in PHP site I can re process it back to array.

<script type="text/javascript">

    function arr_to_get_str(arr){
        // how should I make a get string from an array? 
        // what format should this str shows
        return str;
    }

    var arr=[
        [
            key :'products_id',
            operator: '>',
            value : '20'
        ],
        [
            key :'products_name',
            operator: 'like',
            value : '%hello world%'
        ]
    ];
    var base_uri='http://localhost/test.php';
    var url= base_uri + '?'+ arr_to_get_str(str);
    location.href = url;

</script>

Upvotes: 2

Views: 198

Answers (4)

Avisek Chakraborty
Avisek Chakraborty

Reputation: 8309

  1. Make a JSON string of your array, & encode it into Base64 with window.btoa

    var jsonString = JSON.stringify(array);
var encString  = window.btoa(jsonString); 
// supports all except- ie- below version 10

  2. Send it in request parameter

    var url= base_uri + '?request='+ arr_to_get_str(arr);

  3. In .php file, get the string & decode it to Array or Object

    $requestJsonStr = base64_decode($_GET['request']);

//EITHER make an Array from the JSON-String
$requestArray = json_decode($requestJsonStr, TRUE);

//OR make an Object from the JSON-String
$requestArray = json_decode($requestJsonStr, FALSE);

Upvotes: 1

We0
We0

Reputation: 1149

Rather use encodeURIComponent: 

var url= base_uri + '?q='encodeURIComponent(JSON.stringify(arr));

then php is:

$arrParameters = isset($_GET['q']) ? json_decode(url_decode(($_GET['q'])) : array();

This will get you the parameters or return an empty array if there are none. Not the best practice, but if it an "hackish" admin system, go for it

Upvotes: 1

Rohan Kumar
Rohan Kumar

Reputation: 40639

Try this,

function arr_to_get_str(arr){


  var str='';
    var strarr= new Array();
    for(var i=0;i<arr.length;i++)
    {
        strarr.push(arr[i]['key']+' '+arr[i]['operator']+' '+arr[i]['value']);
    }
    str=strarr.join(' AND ');
    return str;
}

var arr=[
    {
        key :'products_id',
        operator: '>',
        value : '20'
    },
    {
        key :'products_name',
        operator: 'like',
        value : '%hello world%'
    }
];
var base_uri='http://localhost/test.php';
var url= base_uri + '?q='+arr_to_get_str(arr);
alert(url);

//http://localhost/test.php?q=products_id > 20 AND products_name like %hello world%

Fiddle http://jsfiddle.net/vSuDZ/

Upvotes: 0

deceze
deceze

Reputation: 522402

For a complex data structure, the best encoding would be JSON. JSON is pretty inefficient in a URL though, as a lot of characters need to be inefficiently URL escaped. This may be a good use case for Rison. You can find a Javascript implementation on the site and a PHP implementation here.

Upvotes: 1

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