<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>PHP test</title>
</head>
<body>
<?php
/* Class name: Form
* Description: A class that creates a simple HTML
* form containing only text input fields
* The class has 3 methods.
*/
class Form
{
var $fields = array(); #contains field names and labels
var $processor; #name of program to process form
var $submit = "Submit Form"; #value for the submit button
var $Nfield = 0; #number of fields added to the form /* Constructor: User passes in the name of the script where
* form data is to be sent($processor) and the value to show
* on the submit button.
*/
function __construct($processor, $submit)
{
$this -> processor = $processor;
$this -> submit = $submit;
} /* Display form function. Display the form. */
function displayForm()
{
echo "<form action = '{$this->processor}' method = 'post'>";
echo "<table width='100%'>";
for($j=1; $j<=sizeof($this->fields); $j++)
{
echo "<tr><td align=\"right\">
{$this->fields[$j-1]['label']}: </td>";
echo "<td>
<input type='text'
name = '{$this->fields[$j-1]['name']}'>
</td></tr>";
}
echo "<tr><td colspan=2 align='center'>
<input type='submit'
value='{$this->submit}'></td></tr><br>";
echo "</table>";
} /* Function that adds a field to the form. The user needs
* to send the name of field and a label to be displyed.
*/
function addField($name, $label)
{
$this->fields[$this->Nfields]['name'] = $name;
$this->fields[$this->Nfields]['label'] = $label;
$this->Nfields = $this->Nfields + 1;
}
}
/* Script name: buildForm
* Description: uses the form to create a simple HTML form
*/
$phone_form = new Form("process.php", "Submit Phone");
$phone_form -> addField("first_name", "First Name");
$phone_form -> addField("last_name", "Last Name");
$phone_form -> addField("phone", "Phone");
echo "<h3>Please fill out the following form:</h3>";
$phone_form -> displayForm();?>
</body>
</html>输出应该是3个label+一个按钮，但第一行显示为空，值也没传进去，为什么？
使用 $this->fields[$this->Nfields]['name'] = $name;多了或少了个 s