JQuery :: MySQL PHP Associative Array To Via JSON?

Jun 5, 2009

Your table-driven application has a MySQL table on the server side and you want a Javascript associative array on the client side to do rapid look-ups.For example: My application uses the value selected from the form’s drop-down menu to choose which other form fields to hide or show. This choice of a 'Long Form' is table-driven from product data in a MySQL table.

Convert the MySQL table to an associative array in JavaScript.I am using the jQuery library to manage the presentation and form validation on the client side and PHP and MySQL on the server side.Since a JavaScript Object is an associative array and the MySQL table is being used as a look-up table (associative array) I use the PHP function json_encode to create a JSON string - JSON is JavaScript Object Notation - on the server which is then evaluated as a JavaScript Object on the client. The two parts (server and client) of the code are listed below.All very straightforward then. So why the blog?This is what I do (here's the PHP code):

do { $key = $row['ProductKind'];
$value = ($row['LongForm'] ? True : False);
$arr[$key] = $value;

[code]...

As a newcomer to jQuery this is a good opportunity to show my appreciation to John Resig and the people that have contributed to the jQuery library ... not forgetting those who have integrated all the MySQL and JSON stuff into PHP. It's all very neat ... when you get to understand it!You could just eval(data) to turn the JSON string into a JavaScript Object (a.k.a. associative array), but JSON.parse protects your code against evaluating malicious scripts that could be embedded in the JSON string. This function is found in the json2.js downloadable until included in native browser JavaScript engines.The PHP Booleans translate automatically into JavaScript Boolean types.

[Skip this: My application has a MySQL table of product categories that tell me whether I need to present the administrator with a long form or a short form in the HTML. So, as products are added over time, I want to the administrator to choose whether a new product category can take the short form plus some default values or will require the explicit input of all product values in the long form. As the administrator assigns a category to a new product - and changes his mind half a dozen times - I don’t want to keep on going to the server to do the look-up but want to have the table in Javascript to keep the form presentation responsive. Also, the MySQL tables are on a third party’s server remote from the web server.]

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JQuery :: Associative Array To JSON?

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I have been trying to figure out how I could go from an associative array to JSON. Is there a function for this?

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Jan 5, 2010

How I can convert a string to a json array.

start code:

The problem is that .css treats snip[1] as a string but I need it to handle it as a json array.

Bad: .css

Good: .css

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Code JavaScript:

var propertyArray=["a","b","c"];
function create(){
var array=[];

[code]....

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The sorting works ok except that when I run the test code below, the outputed sorted associative array has an extra element at the end of the array whose key is the name of the prototype function and the value for that element is the function code itself. Obviously I am misunderstanding something about associative arrays or how javascript prototypes work.

[Code]...

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var cookie=[];
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cookie["product_1"][cookie["product_1"].length]=12;
$.cookie('uploads', $.toJSON(cookie), { path: '/', expires: 10 });

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Aug 20, 2009

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[Code]...

push() to add clickedElementId as a value associated to a numeric key, but then how would you remove a specific element from the array? How would you approach such a typical algo in javascript? Regards,

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Is it possible to have an Object as the key for an Associative array
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function Obj(var1, var2)
{
this.var1 = var1;
this.var1 = var1;


}
function test() {
var sectionArray = new Array();
var obj = new Obj("c","k");
var obj2 = new Obj("3","n");
var obj3 = new Obj("v","qk");

sectionArray[obj] = "king";
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sectionArray[obj3] = "joker";
alert(sectionArray[obj]);
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This does not give any error but the alert says "joker" instead of
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that just can not be used as a key.

If it is the latter can someone please suggest another way for me to do
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I am having a problem with this test html below. When I enter a correct
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Something like this:

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That is the value itself is any object.

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var users = new array();
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users["jane"] = "Jane Doe";

function isUser (userID)
{
if (?????)
{ alert ("This is a valid ID"); }
else
}

But what goes in place of the ????

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[Code]...

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var NFC_east = new Array();
NFC_east[0]=["Giants", 16, 0, "Eli Manning"];
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[code]....

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Code JavaScript:
 
var data = {
label: $('#label').val(),
child_float: function() {

[code]....

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Lets assume the following object

Code:
var x = {
y: {
z: 10
}
} ;

Next, I need to retrieve the value '10', but the only thing I have is one string as a key For example (this doesn't work):

Code:
var str = '[y][z]' ; // or 'y.z'??
alert(x[str]) ; // should alert 10

Can this be done using a single string as input for x ?

UPDATE: a solution which comes close to what I was looking for is

Code:
var str = "x['y']['z']" ;
alert(eval(str));

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I have an associative array like this:
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I want the sort function to sort keys in ascending order of the values
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PHP Code:

$test_array[] = array ([INDENT]'seller_id'=>$seller_details[$column]['seller_id'],
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{URL]

and I changed it round slightly, I would like the first select box to be Search by either Town or County - Having links would easier?! [URL]

So, when a user selects Town, the PHP selects the Towns or if the user selects County, then show the Counties list

I am currently getting the following error: $ is not defined [Break On This Error] $(document).ready(function() {

here is my HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

[code]....

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<style type="text/css" media="all">
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success:
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---------------------------------
The Problem
---------------------------------

I have made the following structure which uses Dynamic Object Module (DOM) to
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I have a database whose structure contains tag,date and ip as field.

Now I want to send whatever data has been written on the tags field to be
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I read on a forum to use implode function or serialze function and then post
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I didnot understand how to use the implode function WITH REFERENCE TO THE GIVEN TASK.

I am storing whatever the contatenated data from all the tags fields (the no. depends
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And I want all the individual data of the field using DOM in variable tagarray.

Please tell me what will be relationship between the tag and arraytag so all the
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How do I define the index of tag array and the the variable tag. Code:

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