在PHP開發過程中，我們有時候會遇到表單不固定的情況，需要在程序運行過程中動態生成，這裡分享一個PHP自動創建表單的類給大家
Form.php
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 <?php //Form.php class form { var $layout=true;//是否使用表格布局 var $action;//表單要提交到的URL var $method; var $enctype=""; var $name=""; var $id=""; var $class=""; function form($action,$method="POST"){ //通過構造函數初始化成員變量 $this->action=$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 $text; } //文本框函數 function form_text($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 $form_item; } //密碼框函數 function form_passwd($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 $form_item; } //隱藏域函數 function form_hidden($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 $form_item; } //文件域函數 function form_file($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 $form_item; } //復選框函數 function form_checkbox($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 $form_item; } //單選框函數 function form_radio($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 $form_item; } //下拉菜單函數 function form_select($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 $form_item; } //多選列表函數 function form_selectmul($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 $form_item; } //按鈕函數 function form_button($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 $form_item; } //文本域函數 function form_textarea($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 $form_item; } //文字標簽函數 function form_label($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：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 <!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>用戶登錄</title> </head> <body> <?php require_once("form.php"); $form=new form($_SERVER['PHP_SELF']); //提交到本頁 $form->layout=false; //不使用表格布局，大家可以把這句注釋掉看結果有何不同 $name=$form->form_text("userid","userid","用戶名","userid"); $passwd=$form->form_passwd("passwd","passwd","密碼","passwd"); $submit=$form->form_button("","submit","submit","登錄"); $form_item=array($name,$passwd,$submit); $form->CreateForm($form_item); ?> </body> </html>以上所述就是本文的全部內容了，希望大家能夠喜歡。
