Library tutorials & articles
An Introduction to PHP
Form Data
When an HTML document has a form, the action attribute specifies the name
of the program to handle the form data. When a PHP document is specified in
the action attribute, the PHP document has access to the named fields in the
form. Each
field is accessible from the PHP arrays $_POST or $_GET.
The variable chosen will depend on whether the form's method attribute was get
or post.
The following example uses a form to get the user's name and age. The information is then displayed with a PHP document.
simpleForm.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>User Details</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<h1>User Details</h1>
<form id="userDetails" name="userDetails" method="post" action="welcome.php">
<p>
Enter your Name: <br>
<input type="text" size="40" value="" name="name"><br>
Enter your Age: <br>
<input type="text" size="5" value="" name="age"><br>
<input type="submit" value="Enter" name="welcome">
</p>
</form>
</body>
</html>
The following is the PHP script that is called from, simpleForm.html.
welcome.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Welcome</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<p>
<?php
print "Welcome " . $_POST["name"] . "<br>";
print "I see you are " . $_POST["age"] . " years old! <br>";
?>
</p>
</body>
</html>
Iterating through a Form collection
You may iterate through the form collection, using either of the server variables,
$_GET, and $_POST. The following example uses $_POST variable to iterate through the form shown above.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Display Form Collection</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<p>
<?php
print "Posted variables: <br>";
reset ($_POST);
while(list($key,$val) = each ($_POST))
print $key . " = " . $value . "<br>";
?>
</p>
</body>
</html>
I'm available for contract work. Please visit Juicify for details.
Related articles
Related discussion
-
Create this kind of website
by maidentv (1 replies)
-
PHP London July Meetup
by webdeveloperit (1 replies)
-
Binary Studio | software development outsourcing Ukraine
by shane124 (4 replies)
-
SOFTWARE PHP WORK
by synctel (0 replies)
-
London PHP / MySQL Superstar needed!
by gatewaytechnolabs (1 replies)
Related podcasts
-
EarthClassMail.com - Moving from LAMP to .NET 3.5
Scott chats with Matt Davis, architect at EarthClassMail.com, about their move from a LAMP stack (Linux/Apache/mysql/PHP) to .NET 3.5. What's working, what's not, and what kinds of issues are they running into as their architect their solution.
Events coming up
-
Dec
3
The Auckland PHP December meetup
Auckland, New Zealand
Topic: Magento E-Commerce platform Speaker: Robert Popovic, LERO9, Robert is the Technical Director and co-founder of LERO9. Robert attended the Electrotechnical Faculty at The University of Belgrade where he graduated with a Masters in Computer Science and Information Technology. Robert has worked exclusively in the field of web and software development throughout his career.
It is not just talk though: Zend server is flourishing despite the recession - "the Q1 of 2009 has been our strongest quarter ever," says Suraski - and although PHP's enterprise market share is small compared to Java or .NET, it is growing. Read more on ITJOBLOG.
but i need to send values in one folder to another
Yes, I think you're correct, although you could easily have a line like this:
to get around that problem. Which I think is what's missing from this tutorial
In the PHP file should it be "$_POST["num"]" ?
instead of just $num?
I have in php a header which brings a save as box , but when file is down loaded it contains the 6 blank spaces at the start of of document .
I have to avoid storing these blank spaces.Please help me to solve this problem.
You can also do string concatenation like
$h = "Hello";
$w = "World";
$message = "$h $w";
This thread is for discussions of An Introduction to PHP.