Check If Form Is Submitted

I am using PHP to generate a form that submits to $PHP_SELF. The first time the script executes is should only create a data entry form based upon a MySQL "DESCRIBE table" statement. When submitted, the script will insert the form's data into a table using an INSERT INTO statement.

I need a way to determine if the script should DESCRIBE and generate the form or instead INSERT the submitted data into a table. In the past I used a hidden field with name=submitted value=true and checked for that to determine if script should DESCRIBE or INSERT.

However in this case I want to simply get the name/values from the HTTP header and INSERT them into the table. Form element names correspond to the desired table field names. Having the hidden field requires me to filter out the unwanted data. (I guess I need to submit the table name inorder to know which table to insert into, so there is atleast one required hidden field that is not part of the actual data to insert.)


How Do I Check If A Form Is Being Submitted?

I have a PHP code that checks if a form button has been clicked:

if (isset($save)){...
<input type="submit" name="save" value="Check the results...">

Upon clicking the button a PHP code runs that saves stuff to a MySQL db. The thing I'm doing is that I'm submitting the form with this code in a java script:


This javascript is triggered by other user input and I do Not want to force the user to press any additional buttons to submit the form. How can I make the PHP code run when submitting a form instead of a button? = I want to submit the form but After I've run my PHP code and saved my data to the db.

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Check If A Form Has Been Submitted

what var can you use to check if a form has been submited.

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Check If A Form Is Submitted Via Javascript?

I have this conventional submit button which submit a form like this:

<form method="post" id="form_submit">
<input class="button" type="submit" name="Submit" value="Submit">

And I check if the submit button is clicked using this:

//update DB

Now I have a submit link using jquery:

<a href="#" onclick="publish(); return false;">Submit</a>

JS code:


What is the alternative way here to be used here for if(isset($_POST['Submit'])) since I'm submitting the form using javascript?

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i simply want to check if when the form is submitted on page1, and then define a session variable and pass it along to be picked up by page2. my simple code is not doing the trick;

ini_set("display_errors", 1);
//chg to 0=errorReportingNo; 1 for errorReportingYes.


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Wonder if there is any way to check all variables through a loop when a form is submitted.
I have few checkboxes (chk1,chk2,chk3...) in a form and in a php file I wanted to go through a loop to check which checkbox is 'on' and then so something with that variable.

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I'm trying to validate a form. If after it's submitted and there is a problem with the email field for example, but not this radio group, I want the page to be served with whatever radio button was select, to include "checked='checked'". I started with this markup

HTML4Strict Code:
<input type="radio" name="rate" value="excellent" id="ex" class="radio">
<label for="ex">Excellent</label>


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Check In A Form If A Date Submitted Is Not Null?

i want to check in a form if a date submitted is not null, how can i modify this script

if( empty($_POST['year'] . '-' . $_POST['month'] . '-' .$_POST['day'])

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Just like the question title, if I have an update_process.php, how to check if people access it by typing it in the address bar or if they go through the page from submitted form?So if they type it in the address bar, I'll redirect them to other pages.Oh yeah, i'm talking about the method in CI. so maybe if the file is blog.php and method update_process, i don't want people to type in the address bar blog/update_process

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Add A Check To Make Sure That The Page That Submitted The Form Info Was From Website?

I am getting hit hard by spam. I tried adding a hidden field to stop bots but still getting hit hard. I want to add a check to make sure that the page that submitted the form info was from my site. something like...

Code: [Select]if (REFFER_PAGE != ) {
submit data }

Should that work? The form appears on many pages but they all fall under the same domain.

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Check All Fields In Form Have Value When Submitted - Warning: In_array() - Wrong Datatype For Second Argument

I am trying to check that all my fields in my form have value when submited. So instead of using isset i am using in_array, but get an error (Wrong datatype for second argument)

$form = array('FirstName', 'LastName', 'EmailAddress', 'YourBorough');
foreach($_POST as $key => $value){
if(in_array($value, $from)){
echo 'all fields filled in';                        

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i am making comment script in php and want to know how to check whether user submitted homepage url is valid.

i dont want nothing complex, just check if it starts with http:// and dont contain symbols that cant be used in url

cant you give me code or link? and where i can read what symbols cant be used in url?

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Can somebody write the lines for me:

1. how to make sure that data from $_GET would be all numbers via eregi()

So how do i check and make sure that the stuff passed into "data" is a set of numbers ranging from 1-99999999? .....

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I'm trying to make a check to see if a file to be uploaded was added. I have tried the below and a few variations. I imagine I'm having problems because $_FILES is a global variable and is therefore always set. But I still can't figure out what to do instead.

if (!isset($_FILES['file'])){
$err = $err + 64;

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I have a form where im asking for name, surname, phone cellphone and at the end user has to check one or more options in a checkbox and then clicks submit.

After that in the "thank you page" i want to show the exact form but this time to show only the non-checked checkboxes. Reason for this is that i want to say "We highly recommend you check all the options for better results, you can do so by simply clicking the submit button below"

And then below that i want to present the form as i said, but the remaining checkboxes (the oens that were not checked before) would be only the NON-checked options in the previous page. Makes sense?

Ive tried hard with php if states and switches but still cant get the result i want, it seems i have to define "false statements" in a way im not cabable of doing it.

Should i use php or jquery?

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I have a form on my homepage which on submit sends the data to my email. I need to know if it it possible to include in the form a read only field containing the refererid in the URL. (for instance, if someone were to have visited my homepage by entering; [URL]... could I capture that 7777 in one of the form fields so that when the form is submitted I recieve the refererid?

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AJAX Submitted Form Won't Work If Form Variables Missing

I have a contact form built with jQuery and AJAX. Everything works great when all form variables are sent, but if you leave out the required fields the PHP doesn't put the data into the database, but still returns true.

The data being sent (from firebug): "name=David+Long&"

The PHP code to setup all the variables:

declare our variables
$name = stripslashes(urldecode($_GET['name']));
$phone = stripslashes(urldecode($_GET['phone']));
$email = stripslashes(urldecode($_GET['email']));


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Normal submission works fine.

<html xmlns="">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />


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Submitted A Certain Form

I basically just need something that will, in an admin section of the site, tell how many times a certain form has been submitted. It's basically for a lead-generation counter for a real estate broker. The form would be something people would fill out to go into a home finding section, therefore, the broker could see how many leads were generated based on how many people filled out the form.

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Form Is Being Submitted

PHP Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<form name="msg" action="comment.php" method="post">
Name: <input type="text" name="usname" size="10" /><br />
Message: <input type="textarea" name="mesg" /><br  />
<input type="submit" value="send" />

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Last Submitted Value In A Form?

when you want to display the last submited value in a form (text field) i type

<input name="artist" type="text" size="34" value = $_POST[artist] >
<input name='photo_filename[]' type='file' class="style22" value =?????? />

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Submitted Form Just Shows Itself

I have a form i will use to register new people and when I click the
submit button, the form just shows itself. It is supposed to show a
message showing field errors if you leave fields blank etc. so
submitting the empty form should show error message in red , then show
form, but all it does is show form. I checked the variable to make
shore they ere ok and they are fine. i believe it is a logical error
with my if else.... I eved modularized everything by using functions
and the same results.

if any one sees the logical error, let me know. Here the code:


function showmessage() {
// Check to make sure they entered a valid email address.
if (eregi("^([[:alnum:]]|_|.|-)+@([[:alnum:]]|.|-)+(.)([a-z]{2,4})$",
$HTTP_POST_VARS['emailfield'])) {
$d = TRUE;
} else {
$d = FALSE;
$message1[] = "The email address you entered is not valid.";

function checkfields(){

$year = $HTTP_POST_VARS['yearfield'];
$month = $HTTP_POST_VARS['monthfield'];
$day = $HTTP_POST_VARS['dayfield'];
$dobfield = $year.$month.$day;
// Check the last name.
if (eregi ("^([[:alpha:]]|-|')+$", $HTTP_POST_VARS['usernamefield']))
$a = TRUE;
} else {
$a = FALSE;
$message1[] = "Please enter a correct username. I.e; EricDerouen
that consists only of letters.";

// Check the first name.
if (eregi ("^([[:alpha:]]|-|')+$",
$HTTP_POST_VARS['firstnamefield'])) {
$b = TRUE;
} else {
$b = FALSE;
$message1[] = "Please enter a First Name that consists only of

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I need a php script that redirects another url with just typed in browsers.

Like :

In the browser address bar, When I typed

Then the url goes to :

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I'm using a combination of php and javascript and want to know if there's a way to check for submitted information if there's no submit button? My javascript gathers information and essentially passes it to another form that consists of nothing more than the <form> tags. It's this <form> that then passes information to PHP for processing. Is there a way to tell if it's been submitted?

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Problems When Form Is Submitted

I have a script that grabs an id from a previous page, I then have some html which allows a user to submit some details on that id.

The problem I am having is when I hit submit, the page returns, but the update query won't run and in the url of the page the id has pulled back some of the html fields from the html part of the script: Code:

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Currently, when I design my forms, I like to keep the name of the submit button equal to the id of the form. Then, in my php, I just do if(isset($_POST['submitName'])) in order to check if a form has been submitted and which form has been submitted.

Firstly, are there any security problems or design flaws with this method?

One problem I have encountered is when I wish to overlay my forms with javascript in order to provide faster validation to the user. For example, whilst I obviously need to retain server side validation, it is more convenient for the user if an error message is displayed inline, upon blurring an input. Additionally, it would be good to provide entire form validation, upon clicking the submit button.

Therefore, when the user clicks on the form's submit button, I am stopping the default action, doing my validation, and then attempting to renable the traditional submit functionality, if the validation passes. In order to do this, I am using the form.submit() method but, unfortunately, this doesn't send the submit button variable (as it should be as form.submit() can be called without any button being clicked). This means my PHP script fails to detect that the form has been submitted.

What is the correct way to work around this? It seems like the standard solution is to add a hidden field into the form, upon passing validation, which has the name of form's id. Then when form.submit() is called, this is passed along in place of the submit button. However, this solution seems very ungraceful to me and so I am wondering whether I should:

a) Use an alternative method to detect which form has been submitted which doesn't rely rely on passing the submit button. If so what alternative is there? Obviously, just having an extra hidden field from the start isn't any better.

b) Use an alternative Javascript solution which allows me to retain my non-Javascript design. For example, is there an alternative to form.submit() which allows me to pass in extra data?

c) Suck it up and just insert a hidden field using Javascript.

UPDATE: I've accepted the correct answer but I just wanted to clarify my mistake here so it would be more helpful for others. I use Mootools and I very naively believed that when I used addEvent('submit' ...) I needed to immediately call event.stop() in order to prevent the from from being submitted. Actually this is not the case and I can just call event.stop() only if validation fails. Otherwise, the default submit gets fired, as usual, and using form.submit() becomes completely unnecessary.

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