Can we use input type value in session variable without any form submitting
like there is an input field now i want to save above input field value in a $_session['anyname']; when there is no form in page.
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How are you supposed to have an input field without a form?Joe Phillips– Joe Phillips2010-01-13 00:53:46 +00:00Commented Jan 13, 2010 at 0:53
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From the sounds of it, you are asking for AJAX. There are many great sources where you can (and should) read up on the subject. Here's an intro from w3c schools: w3schools.com/Ajax/ajax_intro.aspJustin Johnson– Justin Johnson2010-01-13 03:55:12 +00:00Commented Jan 13, 2010 at 3:55
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3 Answers
in set.php:
<?php
session_start();
$_SESSION['value'] = $_POST['value'];
?>
in the non-form form page.php:
<?php session_start() ?>
<html>
<head>
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
function setVal()
{
var val = jQuery('#value').val()
alert('Setting the value to "' + val + '"')
jQuery.post('set.php', {value: val})
alert('Finished setting the value')
}
jQuery(document).ready(function() {
setTimeout('setVal()', 3000)
})
</head>
<body>
<form>
<input id="value" type="text" name="value" value="value">
<input id="value2" type="text" name="value2" value="value2">
</form>
</body>
</html>
this will record the value (after a 3 second delay)
test it in test.php:
<?php
session_start();
echo '<pre>';
echo htmlentities(var_export($_SESSION, true));
echo '</pre>';
?>
now it's in your session with no form submit
8 Comments
Dominic Barnes
He specifically requested there to be no form submission required.
jspcal
there is no form submit, but you need a <form> element if you want to catch events, even if you're not submitting
xkeshav
how to do that?? please suggest me
xkeshav
now how to show that session variable value in set.php page or how do i know that the value is really coming or not
xkeshav
not changing any value from that input box, bcoz value in input box also coming from another javascript, and i m doing all these stuff on backend, i means not any user interference( it shoud done automaticaaly)
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I suppose your best bet is to set up a separate PHP script that is called upon via Javascript with the input field information in the query string (ajax.php?key=value) and stores that information to a $_SESSION variable.
That PHP would probably look something like this:
session_start();
foreach ($_GET as $key => $value)
$_SESSION[$key] = $value;
2 Comments
xkeshav
how to call javascript on a input box? i m doing all thing between the login page and dashboard page( just after login) i mean where i doing all database stuffs
xkeshav
let me know actaully what i m doing? i m using a google map to find distance from given input field from all distance that is in my database, and if distance is desired then who onlt those places name on dashboard , so i have to do all this stuff in beetween login and main page , do u have any other solution?? please suggest me
Using jQuery and PHP
The HTML:
<input type="text" id="autosend" />
The JavaScript
$(function(){
$('#autosend').blur(function(){
$.post('receiver.php',{fieldval:$(this).val()},function(response){
alert(response);
});
})
})
The PHP
$_SESSION["somename"] = $_POST["fieldval"];
echo $_SESSION["somename"];
Now, whenever input field looses focus, the session variable will be updated with the current value.
answered Jan 13, 2010 at 8:27
Kristoffer Sall-Storgaard
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1 Comment
xkeshav
Dear i dont want to blue or any event on that input field on that page( eg x.php), bcoz value from that input field is coming through another javascript and that value i have to use on next page , bcoz the page(x.php) where that value is coming will not showm anywhere. actauuly i m signing in on a.php and after signing in i goes to b.php , but meanwhile a.php and b.php there is 'x.php' where i m doing database stuffs and i need that input field value on that page (x.php) want to use at 'b.php'