PHP自动生成表单代码分享


            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!==""){

            $text.=" class=\"{$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();

    }

}

?>





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。