//Form.php class form { var $layout=true;//Whether to use table layout var $action;//The URL to which the form should be submitted var $method; var $enctype=""; var $name=""; var $id=""; var $class=""; function form($action,$ method="POST"){ //Initialize member variables through the constructor $this->action=$action;
$this->method=$method;
}
function form_start(){
$text=" }else { $text="n";
}
return $text;
}
//Text box function
function form_text($name, $id,$label_name,$label_for,$value=""){
$text=" $text.="id=" {$id}" "; if(isset($value)){ $text.="value="{$value}" "; } $text.="/>n" ;
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//Password box function
function form_passwd($name,$id,$label_name,$label_for,$value=""){
$text=" $text.="id="{$id}" "; if(isset($value)){ $text.="value="{$value}" "; } $text.="/>n";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text );
return $form_item;
}
//Hidden domain function
function form_hidden($name,$id,$label_name,$label_for,$value=""){
$text="< input type="hidden" name="{$name}" id="{$id}" "; if(isset($value)){ $text.="value="{$value}" "; } $text.="/>n";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($ label,$text);
return $form_item;
}
//File domain function
function form_file($name,$id,$label_name,$label_for,$size=""){
$text =" $text.="id="{$id}" "; if(isset($size)){ $text.="size="{$size}" "; } $text.="/>n";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//复选框函数
function form_checkbox($name,$label=array(),$label_name,$label_for=""){
$i=0;
$text=array();
foreach ($label as $id=>$value){
$text[$i]=" ";
$text[$i].="{$value} ";
$i++;
}
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//单选框函数
function form_radio($name,$label=array(),$label_name,$label_for=""){
$i=0;
$text=array();
foreach ($label as $id=>$value){
$text[$i]=" ";
$text[$i].="{$value} ";
$i++;
}
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//下拉菜单函数
function form_select($id,$name,$options=array(),$selected=false,$label_name,$label_for,$onchange=""){
if($onchange!==""){
$text="n";
}
else{
$text="n";
}
foreach ($options as $value=>$key){
if($selected==$value){
$text.="t{$key} n";
}elseif ($selected===false) {
$text.="t{$key} n";
}
}
$text.="";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//多选列表函数
function form_selectmul($id,$name,$size,$options=array(),$label_name,$label_for){
$text="n";
foreach ($options as $value=>$key){
$text.="t{$key} n";
}
$text.="n";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//按钮函数
function form_button($id,$name,$type,$value,$onclick=""){
$text=" if($onclick!==""){ $text.=" onclick='{$onclick}'"; } $text.=">".$value;
$text.=" n";
if($this->layout==true){
$form_item="nt {$text} n n";
}else {
$form_item=$text;
}
return $form_item;
}
//文本域函数
function form_textarea($id,$name,$cols,$rows,$label_name,$label_for,$value=""){
$text="n";
$label=$this->form_label($label_name,$label_for);
$form_item=$this->form_item($label,$text);
return $form_item;
}
//文字标签函数
function form_label($text,$for){
if($for!==""){
$label="{$text}: ";
}else {
$label=$text.":";
}
return $label;
}
function form_item($form_label,$form_text){
switch ($this->layout){
case true:
$text="n";
$text.="t";
$text.=$form_label;
$text.=" n";
$text.="t";
$text.=$form_text;
$text.=" n";
$text.=" n";
break;
case false:
$text=$form_label;
$text.=$form_text;
break;
}
return $text;
}
function CreateForm($form_item=array()){
echo $this->form_start();
foreach ($form_item as $item){
echo $item;
}
echo $this->form_end();
}
}
?>
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用户登录
require_once("form.php"); $form=new form($_SERVER['PHP_SELF']); //提交到本页 $form->layout=false; //不使用表格布局,大家可以把这句注释掉看结果有何不同
$name=$form->form_text("userid","userid","用户名","userid");
$passwd=$form->form_passwd("passwd","passwd","密码","passwd");
$submit=$form->form_button("","submit","submit","登录");
$form_item=array($name,$passwd,$submit);
$form->CreateForm($form_item);
?>
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