I am try to get the value of the input field with a custom attribute I have created using PHP. This is my code:
<form action="uploadform.php" method="post">
<input type="text" name="email" id="email" mynewattribute="myemail">
<input type="submit" name="submit">
</form>
//uploadform.php
<?php
//I know $name = $_POST['email']; will give me the value but I would like to get the value of the input field with "mynewattribute" and not name. Is it possible?
?>
The web browser doesn't know what to do with your custom attribute, so will simply ignore it. The only data sent when you submit the form is the values of "successful" elements. So your custom data will never be sent, and can never be read by the receiving script.
The best place to put such data is into hidden input fields. One possibility is to use names with square brackets in, which PHP automatically converts into arrays. e.g.
<input type="text" name="email[value]">
<input type="hidden" name="email[magic]" value="true">
Populates an array like this:
$_POST['email']['value'] = '';
$_POST['email']['magic'] = 'true';
Related
I have the following code snippet of my fields I have in my form:
<input id="username" type="text" placeholder="E-mail Address" value="" name="username"></input>
This is what I have in my input field. Is there anybody who will tell me how to get input values to the field using a url? e.g https://mysite?username=ken and it will show "ken" in the input field?
In your HTML, add the input field like this:
<input type="text" name="username" value="<?php echo htmlspecialchars($_GET['username']); ?>" />
Basically, the value attribute of the text field needs to be set to:
<?php echo $_GET['username']; ?>
The code right above this is how you would output a get variable in php whether you are putting it in a text field or not.
To access get variables, always use:
$_GET['variable_name'];
Then you can assign it to variables or pass it as a function parameter.
**However, I strongly do not recommend passing sensitive information like usernames and passwords through GET variables. **
First off, users could change the URL hence changing the variable. They could also accidentally share the URL with someone and that could give someone else access to their account. I would recommend that you create a cookie on their machine that is set to a random ID, and then in a MySQL database, associate that ID with a username so that you know the user can't accidentally share their account or change their username through the URL.
You can do it like this, make an isset in your php form input that can catch your ken variable from GET post, never forget the method="get" inside the form tag and if you are planning on submitting on the same page you can use action="<?php echo $_SERVER['PHP_SELF']; ?>" inside your form tag.. hope this helps, here is your code.. ^_^
<form id="form" name="form" method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<fieldset>
<p>Input</p>
<div>
<input type="text" name="nameoffield" id="nameoffield" value="<?php if(isset($_GET['ken'])){echo $_GET['ken'];} ?>"> <br />
</div>
</fieldset>
<div>
<button type="submit" value="Submit" name="submit">
Submit
</button>
</div>
</form>
The <input> tag and other fields of form must be in a <form>tag.
<form action = "https://mysite" method = "get">
<input id = "username" type = "text" placeholder = "E-mail Address" name = "username" value = "<?php echo $_GET['username']; ?>" />
</form>
In the above code, form tag specifies that the method of submission is 'GET' and the action that will be taken on submission is URL to which your form data will be submitted and processed.
Now assuming that your form is in the same URL to which you are submitting your form, you will get the GET value in the same page (or URL), so in the input text field set the value which is obtained by GET method and use it.
All the GET key-value pairs are stored in an associative array $_GET from which you can access the value of a given key by using that as the index of the array.
e.g. Key is username in this case, so to get the value of the username, $_GET['username'] was used.
I have a set of input boxes and you can add more and more sets of these forms if you click the add more button. In my form I can submit data and I have got it to show up when you reload the page, when the page shows it it also adds a value into a hidden form in case the user updates this information.
However, how can I see all the sets of data which do not have a hidden form value? And all the sets with do have a hidden value so I can do different things to them.
Here is my code:
HTML:
<form>
<div class = "fieldset-1">
<input type="text" id="Name1" name="name[]">
<input type="hidden" id="id1" name="id[]">
</div>
<div class = "fieldset-2">
<input type="text" id="Name2" name="name[]">
<input type="hidden" id="id2" name="id[]">
</div>
</form>
PHP:
$data = $_POST;
extract($data, EXTR_PREFIX_SAME,"br");
//Prints The Variables To Make Sure They Are Correct
print_r($id);
$name = preg_replace("/[^a-zA-Z- ]/", "", $name);
print_r($name);
You have all the post data in a $_POST. It doesn't depend on field's type. The only thing matters — field's name.
The reason why you can't see it with your code is that you do
$name = preg_replace("/[^a-zA-Z- ]/", "", $name);
For what, btw? preg_replace is for string, $name here is an array (cause your form field has a name name[]), so function fails, and you lost your data.
And don't ever use extract, it's considered harmful.
I have a live search form on the site that does two things. If it gets any results it displays them, and if not, the visitor can send an email.
There are two input type fields
<input type="hidden" name="myField" id="myField" value="" />
Email: <input name="email-index" id="email-index" type="text" /></b>
In the email field, the visitor inputs the email. And in the value of the hidden field, i want the search query to be passed from the query.
The search query results are displayed one div before this form with
<!-- Results -->
<h4 id="results-text"> <b id="search-string"></b></h4>
where search-string is replaced with the query.
I have put this into jquery
var hidden = "search-string";
$('input[name=myField]').val(hidden);
but nothing really happens, i get an empty output.
Thank you for your help!
If you have $_GET['search-query'] parameter, just output it to input field:
<input type="hidden" name="myField" id="myField" value="<?php echo $_GET['search-query']; ?>" />
It is because you do not actually get anything from jquery.
Change your script to:
var hidden = $("#search-string").text();
$('input[name=myField]').val(hidden);
I have a basic contact form on my website and I am trying to add the PHP ucwords() function of PHP to the form for the users first_name and last_name fields so they capitalize the first letter correctly. How would I add this to the actual HTML form?
Edit: I want these changes to be applied only after the user submits the form. I don't really care about how the user types it in. I just need someone to actually show me an example.
Like how would I add the PHP ucwords() code to this simple form?
<!DOCTYPE html>
<html>
<body>
<form action="www.mysite.com" method="post">
First name: <input type="text" name="first_name" value="" /><br />
Last name: <input type="text" name="last_name" value="" /><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>
I am assuming I do something like value='<php echo ucwords() ?>' but I have no idea how?
Thanks!
When user submit the form you can access the submitted information through $_POST variable [because method="post"] of PHP and in action you have to specify the actual page where you need the submitted information to be process further
<?php
// for example action="signup_process.php" and method="post"
// and input fields submitted are "first_name", "last_name"
// then u can access information like this on page "signup_process.php"
// ucwords() is used to capitalize the first letter
// of each submit input field information
$first_name = ucwords($_POST["first_name"]);
$last_name = ucwords($_POST["last_name"]);
?>
PHP Tutorials
Assuming short tags are enabled:
$firstName = 'Text to go into the form';
<input type="text" name="first_name" value="<?=ucwords($firstName)?>" />
Otherwise as you stated
<input type="text" name="first_name" value="<?php echo ucwords($firstName); ?>" />
Assuming you wanted to do it without a page refresh, you need to use Javascript. Simplest way would be to add an onkeyup event to the input field and simulate PHP's ucwords functions, which would look something like...
function ucwords(str) {
return (str + '').replace(/^([a-z])|\s+([a-z])/g, function ($1) {
return $1.toUpperCase();
});
}
Edit: In response to your edit, if you want to get the value they sent with ucwords applied, all you need to do is $newVal = ucwords($_POST['fieldName']);
Let me explain.
Normally when hidden fields are passed from a form to the page specified in the action of the form, those hidden fields can be accessed on the processing page like so:
The Form:
<form action="process.php" method="POST">
<input type="text" name="username" />
<input type="password" name="password" />
<input type="hidden" name="loginTime" value="1:23PM" />
<input type="hidden" name="userIp" value="173.23.22.5" />
<input type="submit" name="submit" value="Submit" />
</form>
Processing Page (process.php):
<?php
if isset($_POST['submit']) {
echo $_POST['username'];
echo $_POST['loginTime'];
echo $_POST['userIp'];
}
?>
You see how I had to call the two hidden fields by name and individually. Is there any way I can call all hidden fields that are passed to a page from a form all at once despite what the field names of those are or how many there are?
In other words how do I make PHP do this:
// echo the contents of all hidden
fields here (if there were any)
EDIT
Additional info:
The form is designed in such a way (not the one above of course) that field names will be of the following sort:
product_name_1
product_quantity_1
product_price_1
product_name_2
product_quantity_2
product_price_2
and so incremented so on...
Depending on the user action there can be 3 hidden fields or thousands, there are no limits.
Make an array of valid hidden field names, then iterate through $_POST and if the $_POST field name is in the array of valid field names, echo them.
$valid = array('first_name', 'last_name');
foreach ( $_POST as $key => $value ) {
if ( in_array( $key, $valid ) ) {
echo $_POST[$key];
}
}
PHP does not care whether the field was hidden or not, HTTP doesn't tell PHP how it appeared on the website.
The closest thing I would come up with was saving all names of the hidden fields inside an array and echoing them all in a loop.
You can try the following:
<form action="process.php" method="POST">
<input type="text" name="username" />
<input type="password" name="password" />
<input type="hidden" name="group_hidden[loginTime]" value="1:23PM" />
<input type="hidden" name="group_hidden[userIp]" value="173.23.22.5" />
<input type="submit" name="submit" value="Submit" />
</form>
And then print it:
echo htmlspecialchars(print_r($_POST, true));
This might give you a clue about how to solve this.
there's no way to tell the type of the input built-in, so instead you'll need to come up with a way to identify the ones you want yourself. This can be done either by coming up with a special naming scheme, or by storing a list of the names of the hidden fields in another field. I'd recommend the former option, since you don't have the risk of losing data integrity somehow. Look at using array_filter to parse through the array to get the specially-named fields out.
Maybe, assuming that your hidden fields will be in sequence (i.e. 1,2,3 and not 1,2,4) following all of the end users' actions (adding and taking away fields), you could try something along the lines of
$i = 1;
while(isset($_POST["product_name_$i"]))
{
echo $_POST["product_name_$i"];
echo $_POST["product_price_$i"];
$i++;
}
Or something along those lines?