I cannot understand why, in the following code, the else clause is never performed. The form is displayed, but when I press the Submit button nothing happens. Can anyone help? Cheers.
<!doctype html>
<html>
<head>
<meta charset = "utf-8">
<title>Listing 12-3</title>
</head>
<body>
<h1>Query the Shop Database</h1>
<h3>Search for a Product</h3>
<p> Use a wildcard if necessary - % in front / behind text</p>
<?php
tryagain:
// Wait for submit
if (!$_POST['submit']) {
?>
<form action="<?=$_SERVER['PHP_SELF']?>" method="post">
<p> Product Name: <input type ="text" name="product" /></p>
<p><input type="submit" name = "submit" value = "Submit" /></p>
</form>
<?php
}
else {
// Connect to the Shop database
Please change
if (!$_POST['submit']) {
to
if (!isset($_POST['submit'])) {
Related
I'm new to PHP so please bear with me.
I'm trying to decide the action based on the given input.
Given below is the code I've written for this simple task
<html>
<head>
<meta charset="UTF-8">
<title>SAMPLE</title>
</head>
<body>
<form method="POST" action="<?php
if(isset($_POST['submit_button']))
{
if($_POST['name_field'] === "USERA")
{
echo "output.php";
}
else
{
echo "wronguser.php";
}
}
?>">
Username : <input type="text" name="name_field" value="<?php
if(!isset($_POST['name_field']) || $_POST['name_field']=== "")
{
echo "Enter Something" ;
}
?>">
<input type="submit" name="submit_button" value="SUBMIT BUTTON !">
</form>
</body>
</html>
Here I want the form to redirect to "output.php" if the user is "USERA" or "wrongouput.php" for any other user name entered. Although it works as expected, I'm redirected to the right page only when I press the submit button the 2nd time.
Why is this ?
Also, reloading the page doesn't seem to bring back the original page with the text field containing the default "Enter Something" text. I have to run it all over again from the IDE.
Why is this ?
You can try a different approach
<?php
if(isset($_POST['submit_button']))
{
if($_POST['name_field'] === "USERA")
{
require_once("output.php");
}
else
{
require_once("wronguser.php");
}
}
else
{
?>
<html>
<head>
<meta charset="UTF-8">
<title>SAMPLE</title>
</head>
<body>
<form method="POST" action="">
Username : <input type="text" name="name_field" value="<?php
if(!isset($_POST['name_field']) || $_POST['name_field']=== "")
{
echo "Enter Something" ;
}
?>">
<input type="submit" name="submit_button" value="SUBMIT BUTTON !">
</form>
</body>
</html>
<?php
}
?>
Take your code out of the action, make the action for the form self so it fires on itself, then put your PHP above all the HTML at the top of the file. That'll stop the double click issue.
<?php
if(isset($_POST['submit_button']))
{
if($_POST['name_field'] === "USERA")
{
echo "output.php";
}
else
{
echo "wronguser.php";
}
}
?>">
Username : <input type="text" name="name_field" value="<?php
if(!isset($_POST['name_field']) || $_POST['name_field']=== "")
{
echo "Enter Something" ;
}
?>
<html>
<head>
<meta charset="UTF-8">
<title>SAMPLE</title>
</head>
<body>
<form method='post' action="<?php $SERVER['PHPSELF']; ?>">
<input type="submit" name="submit_button" value="SUBMIT BUTTON !">
</form>
</body>
</html>
I am currently creating an HTML form that has 2 fields; name and an address. It also has a way of selecting one of 2 options. The form will either be used to look up the address of a person. In this case, only the name field is required to be filled out. The other option is to add a person to the file. In this case both fields need to be filled out. For some reason, I am not able to get the values that inputted from the form into my PHP file. Please help.
Here is my HTML Form
<html>
<head>
<title> Form </title>
</head>
<body>
<form action="action_page.php" method="post">
<div>
<label for="name">Name: </label>
<input id="name" type="text" name="name"><br>
</div>
<div>
<label for=address">Address: </label>
<input id="address" type="text" name="address"><br>
<input type="radio" name="action" value="lookup">Lookup<br>
<input type="radio" name="action" value="add">Add<br>
<input type="submit" name="submit"><br>
</form>
</body>
</html>
Here is my PHP file
<html>
<head>
<title> PHP </title>
</head>
<body>
<?php
$name = $_POST['name'];
echo "<p>",$_POST["name"],"</p>";
echo "<p>",$_POST["action"],"</p>";
echo "<p>",$_POST["address"],"</p>";
$address = array();
if($_POST["action"]=="lookup"){
$fh = fopen("address.txt","r") or die("No such file found.");
while(!feof($fh)) {
$line = fgets($fh);
$info = explode("|",$line);
$address[$info[0]]=$info[1];
}
if(array_key_exists($_POST["name"],$address)) {
echo "<p>",$_POST["name"],"<p>";
echo "<p>",$address[$_POST["name"]],"</p>";
}
?>
<body>
</html>
The error was in
echo "<p>",$_POST["name"],"</p>";
It should be
echo "<p>".$_POST["name"]."</p>";
and same for others
My HTML:
<form action="test.php" method="get">
<input type="text" name="text" />
</form>
My PHP:
<html>
<head>
<title>Result</title>
</head>
<body style="background:aqua;">
<?php
$text = $_GET["text"];
$text_html = htmlspecialchars($text);
echo "<h1>Hi, {$text_html}</h1>";
?>
</body>
I want to transport and show data input from type="text" fields in my HTML form, into my PHP file, but the result is as per below:
Hi, {$text_html}"; ?>
Why is the extra code showing?
This is my Source Code.
Assuming you use something (like js) to submit your form.
When you try to output a variable you should use concat of strings.
// this will print the variable name, not is content
echo "<h1>Hi, {$text_html}</h1>";
// Using '.' you can concat strings, so:
echo "<h1>Hi".$text_html."</h1>";
In this way you tell the script that you want the value of $text_html instead of print the string "$text_html"
Hello You need to change in your form code you have to add submit button just. all other code is working fine. Just change your form code with below code.
<form action="test.php" method="get">
<input type="text" name="text" />
<input type="submit" name="submit" value="submit" />
</form>
Because you need to transform data from one page to other page either via form submit or you can use Session or Cookie. but currently in your case you just need to add submit button your code work
You will need a submit button. After the submit button is trigerd the if condition will be set to true and the code will execute.
<html>
<head>
<title>Result</title>
</head>
<body style="background:aqua;">
<form action="test.php" method="get">
<input type="text" name="text" />
<input type="submit" name="submit" value="submit" />
</form>
<?php
if(isset($_GET["submit"])){
$text = $_GET["text"];
$text_html = htmlspecialchars($text);
echo "<h1>Hi".$text_html."</h1>";
}
?>
</body>
<html>
<head>
<title>Result</title>
</head>
<body style="background:aqua;">
<form action="test.php" method="get">
<input type="text" name="text" />
<input type="submit" name="submit" value="submit" /> // add submit button
</form> ////html page
on php page
<?php
if(isset($_GET["submit"])){
$text = $_GET["text"];
$text_html = htmlspecialchars($text);
echo "<h1>Hi".$text_html."</h1>";
}
?>
<html>
<head>
<title>Result</title>
<meta charset="UTF-8">
</head>
<body style="background:aqua;">
<?php
if(isset($_GET["submit"])){
$text = $_GET["text"];
$text_html = htmlspecialchars($text);
echo "<div>Hi,".$text_html."<div>";
}
?>
</body>
I am learning PHP and in the process of making a search engine. The following code will not echo the users input, in the search field, on the results page.
The search page:
<!DOCTYPE html>
<html>
<head>
<title>Search Engine</title>
<style type="text/css">
body {
background:#F0FFFF;
margin:-80px;
}
form {
margin:25%;
}
</style>
</head>
<body>
<form action="result.php" method="post">
<input type="text" name="user_query" size="80" placeholder="Enter Search Here" />
<input type="submit" name="search" value="Search Now" />
</body>
</html>
The results page:
<!DOCTYPE html>
<html>
<head>
<title>Results</title>
<style type="text/css">
.results {
margin:5%;
}
</style>
</head>
<body bgcolor="#F0FFFF">
<form action="result.php" method="get">
<span><b>Enter Query Here:</b></span>
<input type="text" name="user_keyword" size="80" />
<input type="submit" name="result" value="Search Now" />
</form>
<?php
if(isset($_GET['search'])) {
$get_value = $_GET['user_query'];
echo "<div class='results'>
$get_value;
</div>";
}
?>
</body>
</html>
Can someone tell me why the user's input is not being echoed when the search is run?
If you using method=post
In form tag you must receive you data as $_POST
Also method=get use $_GET
Edit this lines in result page to this
<?php
if(isset($_POST['search'])){
$get_value = $_POST['user_query'];
echo "<div class='results'>{$get_value}</div>";
}
?>
well the problem lies in your form tag you should have used method="get" if you want to get some data from database and if you are using method="post" you should have to use $_POST['search'] so your form tag shuld have to be like this
<form action="result.php" method="get">
and if you are going to use method="post" anyway than your $_GET['search'] should have to be $_POST['search']
but i will suggest you to use method="get" for searching query from database
<?php
if(isset($_POST['submit'])){
// Here the code captures the inputs that entered.
Based on the inputs the script shows the associated information.
}
<form method="POST">
<input type="text" name="postc">
<input type="text" name="nr">
<button name="submit">Send</button>
</form>
How to check that both of the inputs are filled and if they are filled automaticly load the PHP code to get the data. (I'm a beginner)
I hope I explained it right!
Example page
http://bit.ly/1hx0EKS
I'd suggest something like below:
HTML
<form method="POST" name="myForm" action="page.php">
<input type="text" name="postc" onchange="submitForm()">
<input type="text" name="nr" onchange="submitForm()">
</form>
Javascript
this function is called anytime you fill an input of your form. It provides to get your input values and submit dynamically the form ONLY when you filled all your (in this case) inputs.
function submitForm() {
var postc = document.forms["myForm"]["postc"].value;
var nr = document.forms["myForm"]["nr"].value;
if (postc != "" && nr != "")
document.myForm.submit();
}
EDIT
This is a full working example
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Your title</title>
<script>
function submitForm() {
var postc = document.forms["myForm"]["postc"].value;
var nr = document.forms["myForm"]["nr"].value;
if (postc != "" && nr != "") {
document.myForm.submit();
}
}
</script>
</head>
<body>
<form method="POST" name="myForm" action="#">
<input type="text" name="postc" onchange="submitForm()">
<input type="text" name="nr" onchange="submitForm()">
</form>
<?php
if(isset($_POST['postc'])){
echo "postc value: " . $_POST['postc'] . '<br />';
echo "nr value: " . $_POST['nr'];
}
?>
</body>
</html>
hope this helps :-)