I am getting the result of signgen() as a value of input field with id="sign" onload. Is there any easy way to get this value as md5?
I think I've seen all of the stackoverflow answers but they all seem to be too complicated for this easy task.
Is there a way to us php md5() function?
Thanks a lot for any help on that.
<html>
<body onload="signgen()">
<form action="url" method="post" class="form">
<input type="text" name="session_id" id="session_id" value="<?php
echo uniqid();?>" /> <br>
<input type="text" name="sign" id="sign"/> <br>
<input name="submit" value="wyślij" type="submit" /> <br>
</form>
<script>
function signgen(){
var sessionid = document.getElementById('session_id');
var mix = sessionid.value + "|abcde";
document.getElementById('sign').value = mix;
}
</script>
</body>
</html>
Thanks for the answers. They put me on the right tracks.
What I finally did is after posting a form with action to another php file I used the data from the form via $_POST added salt (ie. "|abcde") then used the md5 function to create the hash.
Related
If you run and submit the form below:
<!DOCTYPE html>
<html>
<body>
<form action="" method="POST">
First name:<br>
<input type="text" name="firstname" value="<?php if(isset($_POST['firstname'])){echo $_POST['firstname'];} ?>"
<br>
<input type="submit" value="Submit">
<input type="button" onclick="this.form.reset()" value="Clear Form">
</form>
</body>
</html>
Why does this.form.reset() not work when the form is pre-populated with the previously submitted value? The Clear Form button only works before submitting data. I've tried a number of similar approaches using jQuery as well that also only work before submitting the form, never after.
Since JavaScript runs after server-side code, I would expect the value from $_POST['firstname'] to be replaceable with JavaScript (in this case, an empty string).
As suggested by #Taplar reset will set value which was initially set while page load. Don't get confused with "Reset" form value Vs setting value to "" (Blank string)
Try this:
HTML:
<input type="text" id="fn" name="firstname" value="preloaded value" />
<input type="button" onclick="clear_form();" value="Clear Form">
JAVASCRIPT:
function clear_form() {
document.getElementById('fn').value = "";
}
Hi I'm kind of a beginner in coding I've been doing it for a couple of months doing basic things. I'd like to know how to make a basic account sign in type of thing, where you type in your username and password that you want press submit then it saves those to the html file and remember it when I exit and that the next time you type in your username and password it will recognize the username and password. Any thoughts? The code I have so far...
<!DOCTYPE HTML>
<html>
<head>
<title>Sign Up!!!</title>
</head>
<body>
<form>
<input type="text" name="UserName" value="Username">
<br>
<input type="text" name="Password" value=Password">
<br>
<input type="submit" name="SU" value="Sign Up" onclick="su()"
</form>
<script>
function su(){
var su = document.getElementsByName("Username")[0].value;
var su2 = document.getElementsByName("Password")[0].value;
}
</script>
</body>
</html>
I have the var su to get what's in the text boxes, but I'm not sure on how to save those two things. What do I do?
There are some ways to do that, but there are very simple way in HTML5, just put <input type="text"> for the user name and <input type="password"> and the web browser will automatically cache it.
There are many youtube tutorials for your answers. However, you will mainly need php. Here is a link to a tutorial about register and login.
I am new to HTML. I have got an URL in the following format:
dosomething?param1=abc¶m2-xyz
This URL is guaranteed to be valid.
How I have got an HTML page with a button on that. What I want to do is to send a GET request to the URL by clicking the button.
I have tried this:
<form method="GET" action="dosomething?param1=abc¶m2-xyz">
<button>DO Something</button>
</form>
The problem is that the parameters are missing on the server side.
What is the proper way to do this? I cannot make an Ajax call on this as it will be a file downloading action and people told me that it won't work with Ajax.
Javascript solution is OK for me.
Please help.
You dont need Javascript for this as you can simply form your request like
<form method="GET" action="dosomething">
<input type="hidden" name="param1" value="abc">
<input type="hidden" name="param2-xyz" value="">
<input type="submit" value="DO Something">
</form>
see http://www.w3schools.com/html/html_forms.asp
Of course you could also use Javascript, you might want to look into using JQuery with http://api.jquery.com/jQuery.get/
see also HTTP GET request in JavaScript?
Furthermore, out of interest, what did "people" tell you about "Ajax won't work"?
The GET paramaters are passed by the input tag. This is a proper way :
<form method="GET" action="dosomething.php">
<input type="text" name="customparam" />
<input type="hidden" name="param1" value="value1" />
<input type="hidden" name="param2" value="value2" />
<input type="submit" />
</form>
When you will click on the submit button, you will be on dosomething.php?customparam=whatiwrote¶m1=value1¶m2=value2
On your page "dosomething.php", you can access these params with that :
<?php
$customparam = $_GET['customparam'];
$param1= $_GET['param1'];
$param2= $_GET['param2'];
echo "The value of param1 is : ".$param1;
?>
If the params don't move, you can also put them in a link directly with :
<a href="dosomething.php?param1=value1¶m2=value2" >My link </a>
I know I can pass query parameters from a form and expect them in the query string:
<form method="GET">
<input type="text" name="param" value="value" />
<input type="submit" value="submit" />
</form>
This results in
http://blah-blah-blah/blah?param=value
However, in my webapp, I'm using path parameters. To access a single book, #459, in the library, you'd visit
/books/459
and to check one out, POST to
/books/459/checkout
where 459 is a path parameter. When I try
<form action="/books/{book_id}">...</form>
it takes me to
/books/%7Bbook_id%7D
rather than
/books/459
Do I need javascript or something to build the URI?
Thanks to RobG
I have used the same thing in calling WhatsApp from mobile application
It works beautifully
<form action="https://wa.me/"
onsubmit="this.action = this.action + this.mobile.value; this.submit();">
<input type="tel" name="mobile" size="10" value="91xxxxxxxxxx"/>
<input type="text" name="text" value="Thanks Vijayan!" />
<input type="submit" value="WhatsApp" />
</form>
You may need something like:
<form onsubmit="this.action = this.action + this.book_id.value;" ...>
However, making the action dependent on scripting is poor design. It is much more robust for your server to deal with the URI ...?book_id=value, which does not require any client script at all.
If you are generating your HTML with PHP, the code below should work (untested).
$book_id = 459;
<form action="/books/{$book_id}">...</form>
Alternatively, you could dynamically modify the html using JavaScript. It is better not to do it this way because some users may disable JavaScript. (untested)
$('form').attr('action','/books/' + book_id);
I would like to fill out and a submit a form explicitly with JavaScript. First, I thought I had to use window.open but it's certainly wrong because if it gets loaded, the left of my scripts written for example in a html file would be ignored.
Do I have to create a .js file and fire that one?
uhhhh...not exactly sure how this relates to injections...you can do this with jQuery in a handful of lines of code.
say you have the following form:
<form id="theForm" name="testForm" action="whatever.php" method="get">
<input type="text" name="cow" />
<input type="text" name="sheep" />
<input type="text" name="pig" />
<input type="submit" value="Submit" />
</form>
If you have jQuery loaded, all you need to do is this:
function submitForm(){
var cowVal="Cows go moooo!";
var sheepVal="Sheep go baaaaaaah!";
var pigVal="pigs go sooooeeeeeeeh!";
$("#theForm input").eq(0).val(cowVal).next().val(sheepVal).next().val(pigVal).parent().submit();
}
Hope that helps!