echo for an input in PHP

Lylian

I am new in PHP.. dummy in PHP!!!, could any one please show me:

how to echo out to the user to enter an integer in PHP?....
What is the syntax, code.. to accept an integer number as an input?Do I need to declare the variable?

(I use Form, post method but ran into couple problems to submit the input and pass another variable to handleform.php at the same time, so I am thinking to echo out for an input!!!) I read 3 books but they all wrote about FORM or number is already given in the code, did not find any "input".. Please help!

thorpe

if your talking about creating a popup message, its not happening in php. php runs on the server meaning that the forms contents would need to be sent to the server and then processed by php. you could then check if the user entered an integer, and if they didnt you could send then back to the form with a message telling them they need to fill out the form corectly.


<?php

if (!isset($_POST['submit'])) {
	if (isset($_GET['failed'])) {
		echo 'you must provide an integer value';
	}
	echo '<form action="'.$_SERVER['PHP_SELF'].'" method="post">';
	echo '<input type="text" name="yourfield">';
	echo '<input type="submit"></form>';

} else {
	if (!is_numeric($_POST['yourfield'])) {
		header("Location: ".$_SERVER['PHP_SELF']."?failed=true");
	}
}

?>

Lylian

Thanks. I did tried Form, but I got stuck (see below) and I have been trying until 4AM..... I can't use <a href... a_file.php?ABC... > or can't use .... $var = $_GET['key']; because I have nothing to link

I tried
<form method="post" action="a_file.php"> .... to accept a <input type="text" name="number"...>
no problem to this point. But I also need to pass another value $ABC from "this_file.php" to "a_file.php" on the submit button clicks..

so 2 values on the submit clicks: one is "number" from user, one is $ABC from something else in a program will need to pass to "a_file.php"...

I don't know how to do it. Does any one know, please show me.

kburger

I'd suggest reading PHP's tutorial.