add onclick function to a submit button
OnclickSubmitOnclick Problem Overview
I'm just learning javascript and php. I created a contact form and I'd like the submit button to accomplish two things when I press it:
- submit the data to me (this part is working)
- read my onclick function (this part is not working)
<input id="submit" name="submit" type="submit" value="Submit" onclick="eatFood()">
<?php
if ($_POST['submit']) {
////?????
}
?>
I'm sending the data to my email, and so I get that. But the onclick function doesn't seem to work. I tried reviewing https://stackoverflow.com/questions/5356011/add-onclick-function-for-submit-button but it didn't help.
Onclick Solutions
Solution 1 - Onclick
I need to see your submit button html tag for better help. I am not familiar with php and how it handles the postback, but I guess depending on what you want to do, you have three options:
- Getting the handling
onclickbutton on the client-side: In this case you only need to call a javascript function.
function foo() {
alert("Submit button clicked!");
return true;
}
<input type="submit" value="submit" onclick="return foo();" />
-
If you want to handle the click on the server-side, you should first make sure that the form tag method attribute is set to
post:<form method="post"> -
You can use
onsubmitevent fromformitself to bind your function to it.
<form name="frm1" method="post" onsubmit="return greeting()">
<input type="text" name="fname">
<input type="submit" value="Submit">
</form>
Solution 2 - Onclick
html:
<form method="post" name="form1" id="form1">
<input id="submit" name="submit" type="submit" value="Submit" onclick="eatFood();" />
</form>
Javascript: to submit the form using javascript
function eatFood() {
document.getElementById('form1').submit();
}
to show onclick message
function eatFood() {
alert('Form has been submitted');
}
Solution 3 - Onclick
if you need to do something before submitting data, you could use form's onsubmit.
<form method=post onsubmit="return doSomething()">
<input type=text name=text1>
<input type=submit>
</form>
Solution 4 - Onclick
I have this code:
<html>
<head>
<SCRIPT type=text/javascript>
function deshabilitarBoton() {
document.getElementById("boton").style.display = 'none';
document.getElementById("envio").innerHTML ="<br><img src='img/loading.gif' width='16' height='16' border='0'>Generando...";
return true;
}
</SCRIPT>
<title>untitled</title>
</head>
<body>
<form name="form" action="ok.do" method="post" >
<table>
<tr>
<td>Fecha inicio:</td>
<td><input type="TEXT" name="fecha_inicio" id="fecha_inicio" /></td>
</tr>
</table>
<div id="boton">
<input type="submit" name="event" value="Enviar" class="button" onclick="return deshabilitarBoton()" />
</div>
<div id="envio">
</div>
</form>
</body>
</html>
Solution 5 - Onclick
- Create a hidden button with
id="hiddenBtn"andtype="submit"that do the submit - Change current button to
type="button" - set
onclickof the current button call afunctionlook like below:
function foo() {
// do something before submit
...
// trigger click event of the hidden button
$('#hinddenBtn').trigger("click");
}
Solution 6 - Onclick
<button type="submit" name="uname" value="uname" onclick="browserlink(ex.google.com,home.html etc)or myfunction();"> submit</button>
if you want to open a page on the click of a button in HTML without any scripting language then you can use above code.