<?php //Form.php class form { var $layout=true;//是否使用表格布局 var $action;//表单要提交到的URL var $method; var $enctype=""; var $name=""; var $id=""; var $class=""; function form($action,$method="POST"){ //通过构造函数初始化成员变量 $this->action=$action; $this->method=$method; } function form_start(){ $text="<form action=\"{$this->action}\" method=\"{$this->method}\""; if($this->class!==""){ $text.=" class=\"{$this->class}\""; } if ($this->enctype!=="") { $text.=" enctype=\"{$this->enctype}\""; } if($this->id!==""){ $text.=" id=\"{$this->id}\""; } if($this->name!==""){ $text.=" name=\"{$this->name}\""; } $text.=">\n"; if($this->layout==true){ $text.="<table>\n"; } return $text; } function form_end(){ if ($this->layout==true) { $text="\t</table>\n"; $text.="</form>\n"; }else { $text="</form>\n"; } return $text; } //文本框函数 function form_text($name,$id,$label_name,$label_for,$value=""){ $text="<input type=\"text\" name=\"{$name}\" "; $text.="id=\"{$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 $form_item; } //密码框函数 function form_passwd($name,$id,$label_name,$label_for,$value=""){ $text="<input type=\"password\" name=\"{$name}\" "; $text.="id=\"{$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 $form_item; } //隐藏域函数 function form_hidden($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 $form_item; } //文件域函数 function form_file($name,$id,$label_name,$label_for,$size=""){ $text="<input type=\"file\" name=\"{$name}\" "; $text.="id=\"{$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]="<input type=\"checkbox\" id=\"{$id}\" name=\"{$name}\" value=\"{$value}\" />"; $text[$i].="<label for=\"{$id}\">{$value}</label>"; $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]="<input type=\"radio\" id=\"{$id}\" name=\"{$name}\" value=\"{$value}\" />"; $text[$i].="<label for=\"{$id}\">{$value}</label>"; $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!==""){ $text="<select id=\"{$id}\" name=\"{$name}\" onchang=\"{$onchange}\">\n"; } else{ $text="<select id=\"{$id}\" name=\"{$name}\">\n"; } foreach ($options as $value=>$key){ if($selected==$value){ $text.="\t<option valute=\"{$value}\" selected=\"selected\">{$key}</option>\n"; }elseif ($selected===false) { $text.="\t<option value=\"{$value}\">{$key}</option>\n"; } } $text.="</select>"; $label=$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){ $text="<select id=\"{$id}\" name=\"{$name}\" size=\"{$size}\" multiple=\"multiple\">\n"; foreach ($options as $value=>$key){ $text.="\t<option value=\"{$value}\">{$key}</option>\n"; } $text.="</select>\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=""){ $text="<button id=\"{$id}\" name=\"{$name}\" type=\"{$type}\""; if($onclick!==""){ $text.=" onclick='{$onclick}'"; } $text.=">".$value; $text.="</button>\n"; if($this->layout==true){ $form_item="<tr>\n\t<th> </th><td>{$text}</td>\n</tr>\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=""){ $text="<textarea id=\"{$id}\" name=\"{$name}\" cols=\"{$cols}\" rows=\"{$rows}\">{$value}</textarea>\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!==""){ $label="<label for=\"{$for}\">{$text}：</label>"; }else { $label=$text."："; } return $label; } function form_item($form_label,$form_text){ switch ($this->layout){ case true: $text="<tr>\n"; $text.="\t<th class=\"label\">"; $text.=$form_label; $text.="</th>\n"; $text.="\t<td>"; $text.=$form_text; $text.="</td>\n"; $text.="</tr>\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(); } } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh" lang="zh"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <link rel="stylesheet" type="text/css" href="css/styles.css" /> <title>用户登录</title> </head> <body> <?php 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); ?> </body> </html>
