Menu
I'm having trouble with more then one submit Buttons in HTML & PHP, i tried to code a GUI for a web-based calculator. That's realy easy, but the function in php isn't so easy. So i have this simple GUI with 6 submit buttons:
<?php
$output= isset($_POST['output']) ? $_POST['output'] : "";
function calc(){
//calculate...
}
?>
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8" />
<title>Calc</title>
<style type="text/css">
.bwidth {
width: 100%;
}
</style>
</head>
<body>
<form action="calc.php">
<h1>
<u>MY Own Calculator</u>
</h1>
<table border="3px" type="box" cellspacing="5px" width="250px">
<tr style="height: 24px;">
<td colspan="3"><input type="text" name="<?php $ausgabe ?>"
value="0" style="width: 98%;" /></td>
</tr>
<tr>
<td><input class="bwidth" type="submit" name="1" value="1" /></td>
<td><input class="bwidth" type="submit" name="2" value="2" /></td>
<td><input class="bwidth" type="submit" name="3" value="3" /></td>
</tr>
<tr>
<td><input class="bwidth" type="submit" name="minus" value="-" /></td>
<td><input class="bwidth" type="submit" name="plus" value="+" /></td>
<td><input class="bwidth" type="submit" name="enter"
value="=" /></td>
</tr>
</table>
</form>
</body>
Now how I can differentiate these many submit buttons? It's even possible to have more than one submit button? I tried it to seperate the buttons by the value... but it didn't work.
And sb has an idea how i can add a value to an existing value in the textfield? So i can push button 1 and it will write 1 in the textfield and when i will push button 2 it will add the number 2 so it will a "12"?
Thanks for all suggestions!
686
In your php
if(isset($_POST['minus'])) {
// selected minus
}
if(isset($_POST['plus'])) {
// selected plus
}
if(isset($_POST['enter'])) {
// selected enter
}
When you click on a button its going to be send with your post data to the server. All the post data you find in the $_POST array.
If you want to look whats in the $_POST array you can run this small code:
<?php
echo '<pre>' . print_r($_POST, true) . '</pre>';
?>
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
