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How to carry an array value from javascript to php?
Explanation
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] = "uno";
scriptAr[1] = "dos";
scriptAr[2] = "tres";
</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.
Let us consider we get a value from a post action one,two,three
| | i.e: $ss = $_POST['arv']; | |
Now using the php method explode() we will convert the string in to a array object :
| explode(separator,string);
Example : $tok = explode(',',$ss); | |
so we have got a string array. Now we print the array using print_r() method. This method prints the array in string format.
| print_r($tok);
The result
Array ( [0] => one [1] => two [2] => three ) | |
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