php表单选择题代码,php 表单代码
.error{color:#FF0000;}
//定义变量并设置为空值
$nameErr = $emailErr = $genderErr = $websiteErr = "";
$name = $email = $gender = $comment = $website ="";
if ($_SERVER["REQUEST_METHOD"] == "POST"){
if(empty($_POST["name"])){
$nameErr = "姓名是必填的";
} else {
$name = test_input($_POST["name"]);
//检查姓名是否包含字母和空白符
if(!preg_match("/^[a-zA-Z ]*&/",$name)){
$nameErr = "只允许字母和空格";
}
}
if(empty($_POST["email"])){
$email = "电邮是必填的";
}else{
$email = test_input($_POST["email"]);
//检查电子邮件地址语法是否有效
if(!preg_match("/([w-]+@[w-]+.[w-]+)",$email)){
$emailErr = "无效的 email 格式";
}
}
if(empty($_POST["website"])){
$website = ‘"";
}else{
$website = test_input($_POST["website"]);
// 检查URL地址语法是否有效(正则表达式也允许URL中的斜杠)
if(!preg_match("/(?:(?:https?|ftp)://|www.)[-a-z0-9+&@#/%?=~_|!:,.;]"))
$websiteErr = "无效的URL";
}
if(empty($_POST["comment"])){
$comment = "";
}else{
$gender = test_input($_POST["comment"]);
}
if(empty($_POST["gender"])){
$genserErr = "性别是必选的";
}else{
$gender = test_input($_POST["gender"]);
}
}
function test_input($data){
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
PHP 验证实例
* 必需的字段
">姓名：
* <?php echo $nameErr;?>
电邮：
* <?php echo $websiteErr;?>
网址：
评论：
性别：
女性
男性
* <?php echo $genderErr;?>
echo "
您的输入：
";echo $name;
echo " ";
echo $email;
echo " ";
echo $website;
echo " ";
echo $comment;
echo " ";
echo $gender;
?>
.error{color:#FF0000;} //定义变量并设置为空值 $nameErr = $emailErr = $genderErr = $websiteErr = ""; $name = $email = $gender = $comment = $website =""; if ($_SERVER["REQUEST_METHOD"] == "POST"){ if(empty($_POST["name"])){ $nameErr = "姓名是必填的"; } else { $name = test_input($_POST["name"]); //检查姓名是否包含字母和空白符 if(!preg_match("/^[a-zA-Z ]*&/",$name)){ $nameErr = "只允许字母和空格"; } } if(empty($_POST["email"])){ $email = "电邮是必填的"; }else{ $email = test_input($_POST["email"]); //检查电子邮件地址语法是否有效 if(!preg_match("/([w-]+@[w-]+.[w-]+)",$email)){ $emailErr = "无效的 email 格式"; } } if(empty($_POST["website"])){ $website = ‘""; }else{ $website = test_input($_POST["website"]); // 检查URL地址语法是否有效(正则表达式也允许URL中的斜杠) if(!preg_match("/(?:(?:https?|ftp)://|www.)[-a-z0-9+&@#/%?=~_|!:,.;]")) $websiteErr = "无效的URL"; } if(empty($_POST["comment"])){ $comment = ""; }else{ $gender = test_input($_POST["comment"]); } if(empty($_POST["gender"])){ $genserErr = "性别是必选的"; }else{ $gender = test_input($_POST["gender"]); } } function test_input($data){ $data = trim($data); $data = stripslashes($data); $data = htmlspecialchars($data); return $data; } ?> PHP 验证实例 * 必需的字段"> 姓名： * 电邮： * 网址： 评论： 性别： 女性 男性 * echo " 您的输入："; echo $name; echo " "; echo $email; echo " "; echo $website; echo " "; echo $comment; echo " "; echo $gender; ?>