Show Error Message On Same Page

I have Index.php which contains the HTML form with a username and password field + submit button, action: is my check.php.

Say for example the user only input's a username and miss out the password field; when he clicks the submit button. I want the same page to be refreshed with a error message appearing below the submit button saying "error, please fill all in". I can get this to display on another page. but want this to be on refereshed on the log-in page.


Redirect A User To Another Page And Show An Error Message?

On my MySQL search what I want to do is redirect a user to another page and show an error message if the search returned no results. But for some reason the user never gets redirected.

$sql = "SELECT * FROM `list` WHERE `title` LIKE '%".$search[0]."%' AND `url` LIKE '%".$sites[0]."%'";
$catcnt = mysql_fetch_row(mysql_query($sql));
if($catcnt[0] == ''){header('Location: index.php');}else{echo $catcnt[0];}

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php error messages are shown in the browser no problem

perhaps i've inadvertantly changed a setting but i cannot think what!

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function upload_avatar()
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I can't get the error message to echo straight to the browser when I try uploading a file > 2MB.To be fair, CI ignores this large file, and uploads correctly when a file is < 2MB.The only thing is that I can't get the error message to show on the front-end to give the suer some feedback.

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So I created this page where a user can send data to a msql database but when they leave a field blank and they click submit I want an error to show up saying "You left a field blank".This is the code:

$hostname = "";
$db_user = "";
$db_password = "";

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I am putting together a WordPress theme options page. I am trying to figure out if a url entered into a text field passes a validation. If it doesn't, I want to display a message at the top of the admin page to correct what is entered.

In this case, I want to display File type must have the file extension .jpg, .jpeg, .gif or .png at the top of the page when a user enters a file with any other extension. This message is within an if statement, but it is showing up regardless of what is typed into the field. I would like to know what mistake I am making here or if the input is even being validated.

Here is the code within the initialization of the options page

add_action('admin_init', 'theme_admin_init');
function theme_admin_init() {


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Sometimes the php web page return error messages when the web page has
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The code below creates an error message and then displays it if needed. When the messge is displayed though, its diplayed along with all the other stuff on the screen at the time. Is there a way to blank the page first, before displaying the message. PHP Code:

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I have a form that populates a database, and I'm having trouble with the error handling. I want the errors to show in a small pop up window on the same pg.

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I am trying to have neat way of giving error to users by giving them a error message if any of the field in forms are empty right in front of the field. I want to restrain myself from using alert boxes.My code is:-

function validateform(){
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i don't want to set the error message in the query string in the time of redirection... since there may be a array of error message ..

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Will I still have to validate the form back end, ie?

if (empty($_POST['email'])) {
// do something }

Also what would you do if php finds an error? A header redirect to the form or display an error message on the next page, as the form should receive no errors with AJAX hopefully guiding people to fill it out correctly. How much leeway should I provide for non js members? Without js enable the js will not work, ie the form may not be filled out correctly. How should I deal with this as the whole point of using AJAX is to provide a user freindly experience filing out forms so it seems a bad idea to write out rules for your form for non js users, kinda defeats the point!

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What I have right now is a form with simple input fields such as name, phone number, email, and comment.


It goes to a new page and shows the error (if there is one) and if not it goes to a blank page (I know how to make it go to a page but it needs to be kept on its current page) It does work with sending the info to the email.

I have tried header("Location: ".$_SERVER["PHP_SELF"]); And it didnt work..

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I need to make this show an error if the user tries to leave the page without checking this tickbox. It has no other use other than visual, is there a way to implement such a thing?

<input value="1" type="checkbox" name="salgsvilkar" ID="checkbox2" style="float:left;"
background-color:#E5F7C7;';" />

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I'm trying to redirect output of a simple Perl script to a web browser using PHP.The Perl script sometimes take 2-3 hours to execute and show output to the screen.By this time, I guess Apache Server simply timesout and displays an error message discribed above.Here is the sample code snipet.

# The tmpOutput.txt contains output of a Perl script.
# Read a file using an handle.
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I have the following PHP code:


While running this I am passing $message variable as blank so I am getting this error:


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How can I display an alert after a user clicks a submit button in a form?

I want the alert to show when the page has loaded after the submit button has been clicked.

I need the message to be HTML text that is displayed on the page--not a javascript alert.

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Code: [Select]echo 'Registration was successful';but if the lines placed above

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works fine

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I want to show a message only if the user gets to the page by another page (Is a "Create New Section" page that transfers to the Edit page). I thought this might work:

Code: [Select]<?php
if ($_REQUEST['URL'] == 'a_websiteDataAdd.php')
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