PHP form question
How do you capture submitted values from a form and displayed them back on the page in the form fields using PHP? I have already created the form which is as follows:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Order Form</title>
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
</head>
<body>
<form name="orderform" method="get" action="ProcessOrder.php">
<p>Name<br/>
<input type="text" name="name" size="50" /><br/>
<p>Address<br/>
<input type="text" name="address" size="50" /><br/>
<p>City<br/>
<input type="text" name="city" size="50" /><br/>
<p>Province<br/>
<input type="text" name="province" size="2" /><br/>
<p>Postal Code<br/>
<input type="text" name="postalcode" size="6" /><br/>
<p>Email<br/>
<input type="reset"/>
<input type="submit"/><p>
</form>
</body>
</html>
Edit: If I wanted to use a php file to get the values and display them for each field would that work? For example:
<?php
<input type="text" name="name" size="50" value="isset($_GET["name"]) ? htmlsp开发者_StackOverflow中文版ecialchars($_GET["name"]) : ""; ?>" /><br/>
?>
For each field, do something like this:
<input type="text" name="name" size="50" value="<?php print isset($_GET["name"]) ? htmlspecialchars($_GET["name"]) : ""; ?>" /><br/>
I usually use something like this for simple forms/sites without a framework.
$name = isset($_GET['name']) ? trim($_GET['name']) : "";
$address = isset($_GET['address']) ? trim($_GET['address']) : "";
$city = isset($_GET['city']) ? trim($_GET['city']) : "";
$province = isset($_GET['province']) ? trim($_GET['province']) : "";
$postalcode = isset($_GET['postalcode']) ? trim($_GET['postalcode']) : "";
...
<p>Name<br/>
<input type="text" name="name" size="50" value="<?= htmlspecialchars($name); ?>" /><br/>
<p>Address<br/>
<input type="text" name="address" size="50" value="<?= htmlspecialchars($address); ?>" /><br/>
<p>City<br/>
<input type="text" name="city" size="50" value="<?= htmlspecialchars($city); ?>" /><br/>
<p>Province<br/>
<input type="text" name="province" size="2" value="<?= htmlspecialchars($province); ?>" /><br/>
<p>Postal Code<br/>
<input type="text" name="postalcode" size="6" value="<?= htmlspecialchars($postalcode); ?>" />
This allows you to set default values if you need to, or you can just leave them blank.
Or you can do the following*
$fields = array(
'name' => '',
'address' => '',
'city' => '',
'provice' => 'Quebec',
'postalcode' => ''
);
foreach ( $fields as $field => $default ) {
$$field = isset($_GET[$field]) ? trim($_GET[$field]) : $default;
}
And the HTML remains the same.
* No, I didn't test this.
The PHP manual has a great tutorial on how to work with forms in PHP
<form action="action.php" method="post">
<p>Your name: <input type="text" name="name" /></p>
<p>Your age: <input type="text" name="age" /></p>
<p><input type="submit" /></p>
</form>
Hi <?php echo htmlspecialchars($_POST['name']); ?>.
You are <?php echo (int)$_POST['age']; ?> years old.
A sample output of this script may be:
Hi Joe. You are 22 years old.
Revised:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Order Form</title>
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
</head>
<body>
<form name="orderform" method="get" action="ProcessOrder.php">
<p>Name<br/>
<input type="text" name="name" size="50" value="<?php echo(htmlspecialchars ($_GET['name'])); ?>/><br/>
<p>Address<br/>
<input type="text" name="address" size="50"value="<?php echo(htmlspecialchars ($_GET['address'])); ?> /><br/>
<p>City<br/>
<input type="text" name="city" size="50" value="<?php echo(htmlspecialchars ($_GET['city'])); ?>/><br/>
<p>Province<br/>
<input type="text" name="province" size="2" value="<?php echo(htmlspecialchars ($_GET['province'])); ?>/><br/>
<p>Postal Code<br/>
<input type="text" name="postalcode" size="6" value="<?php echo(htmlspecialchars ($_GET['postalcode'])); ?>/><br/>
<p>Email<br/>
<input type="reset"/>
<input type="submit"/><p>
</form>
</body>
</html>
EDIT: Sorry realized you were using GET not POST.
加载中,请稍侯......
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