I have a javascript code that sends a data to my php file...
a sample value of this is:
array(
array('story_name'=>'mystory', 'priority'=>1),
array('story_name'=>'mystory2', 'priority'=>2)
)
so my question is how can i convert this string into the same format of php array so that i can append this to my queries?
Use JSON:
echo json_encode($yourarray);
echo json_decode($_GET['fromjs']);
The javascript array values can be passed to a php file using the following method
Step 1:
Let us consider we have a js array as
<script language=javascript>
scriptAr = new Array();
scriptAr[0] = "one";
scriptAr[1] = "two";
scriptAr[2] = "three";
<script>
Step 2:
Now we will create a hidden form field as follows
<form action="phpArrayTest.php" method=post name=test onSubmit=setValue()>
<input name=arv type=hidden>
<input type=submit>
</form>
Here what we have done is, when the submit is called we first do some work ("onSubmit=setValue()") by using the onSubmit method. The onSubmit method will invoke setValue() function defined by us. After that the action will take place and stringTokens.php will be called.
Step 3: Here we define the setValue method. The method will convert the array periviously defined in to a string and then set it to the hidden field.
<script language=javascript>
function setValue()
{
var arv = scriptAr.toString();
// This line converts js array to String document.test.arv.value=arv;
// This sets the string to the hidden form field. }
</script>
Step 4: In the php file the string will be split back into array.
Are you sure you want to send native php code to the server? That can really cause some major security holes. It's much better to send data in a much more php friendly format.
mystory,1|mystory,2
Then you can just use the explode() method to convert the data into arrays
Others have suggested using JSON. You would format your above data as follows in JSON
[ //Used to indicate sequential array i.e. $myarray[0]
{ //Used to indicate associative array i.e. $myarray["story_name"]
story_name: "mystory",
priority: 1
},
{
story_name: "mystory2",
priority: 2
}
]
You can use eval:
$arr = eval($data);
Note that this could result in security problems since eval() executes any PHP code from a string. You should use this with cauntion.
You also need to add a return to your code.
More information on eval() can be found here: http://php.net/manual/en/function.eval.php
The better way would be to send JSON to your php script like this:
In javascript:
var json = array2json(YOUR_JS_ARRAY);
Send this to your PHP script and there decode this to a PHP array like this:
json_decode($_POST['data']);
See http://php.net/manual/en/function.json-decode.php for more information on JSON decode. See http://en.wikipedia.org/wiki/JSON for more information on the JavaScript Object Notation (JSON).
