Hi I would like to transfer my javascript variable to php, it is just like a real time transferring. The user input, which is entered in a text box, will be transferred to php script to check if it is in the database. Then, the output will be displayed in another textbox that is readonly.
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you can't do this. javascript is client side, php is server side...you're basically looking for AJAX.Visionary Software Solutions– Visionary Software Solutions2013-02-11 07:39:30 +00:00Commented Feb 11, 2013 at 7:39
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2 Answers
You will have to use AJAX for this. I hope it would be better if you can understand the difference between client-side(JavaScript) and server-side(PHP) script. There are a lot questions have been answered with the similar issues. Please google and you can find them with examples. Also refer Client side vs server side basics.
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lebronJames9
<script> jQuery.validator.addMethod("ordrNum",function(value,element) var isExist=false; $.ajax({ type : "POST", async: false, data : "action=checkOrdrNum&id=0&orderno=" + value, url : ajaxurl, dataType:"json", success: function (data) { //console.log(data["order_no"]); if (data["order_no"] >0) { isExist=true; } } }); //console.log(isExist); return isExist;//true; },"This order number does not exists"); </script> <?php echo $_POST['orderno']; ?>
You'll need to look into AJAX. It sounds scary as an acronym, but it's quite easy to use.
In your Javascript (using jQuery, and assuming you have a textbox with the id "searchbox":
$.get("search.php", {"term":$("#searchbox")}, function(data) {
alert(data);
}
In your PHP file "search.php":
echo "Yay! " . $_GET['term'] . " Woo!";
If you run the javascript on the textbox's keyup event, it'll get data live. So if you typed: "Hello World" into the box, you'd get a stream of annoying messageboxes saying:
"Yay! H Woo!", "Yay! He Woo!", "Yay! Hel Woo!", "Yay! Hell Woo!"... "Yay! Hello World Woo!"
From there it's a matter of making the PHP code return something useful. For that look into JSON. From there, it's a matter of writing Javascript to do something with the new, useful information.
2 Comments
lebronJames9
can i put the code: "$.get("search.php", {"term":$("#searchbox")}, function(data) { alert(data); }" to search.php?
lebronJames9
and how to use keyup using the given sample you provide