Form.php
<?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!==""){ $text.=""; } if ($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){ $form_item="<tr>nt<th> </th><td>{$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>"; $text.=$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(); } } ?>
使用示例：
<!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>
以上所述就是本文的全部内容了，希望大家能够喜欢。
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