php学习之路五（表单验证）
<html>
<head>
<title>PHP处理表单</title>
</head>
<body>
<h2>请填写个人信息</h2>
<form action="ChuLi1.php" method="post">
<fieldset>
姓名：<input type="text" name="name" required="required"><br>
年龄：<select name="age" >
<?php for ($i=12;$i<30;$i++){?>
<option value="<?php echo $i;?>"><?php echo $i;?></option>
<?php }?>
</select> <br>
密码：<input type="password" placeholder="请填写密码" name="password"><br>
邮箱：<input type="email" name="email"><br>
<label for="mysubmit">提交</label>
<input type="submit" id="mysubmit" value="提交">
<input type="reset" value="重置"><br>
</fieldset>
</form>
</body>
</html>验证页面：
<?php
$name=$_POST["name"];
$age=$_POST["age"];
$email=$_POST["email"];
$password=$_POST["password"];
//姓名验证
if (empty($name)){
echo "姓名不得为空<br>";
}else if (strlen($name)<3||strlen($name)>10){
echo "姓名长度必须在3到10之间!<br>";
}else {
echo "姓名： ".$name."<br>";
}
//密码验证
if (empty($password)){
echo "密码不得为空<br>";
}else if (strlen($password)<3||strlen($password)>10){
echo "密码长度必须在3到10之间!<br>";
}else if(!ereg("[0-9a-zA-Z]+",$password)){
echo "密码必须为数字和字符组合!<br>";
}else {
echo "密码： ".$password."<br>";
}
//邮件地址验证
if (empty($email)){
echo "邮件地址不得为空!!!";
}else if (!ereg("^[a-zA-Z0-9_.]+@([a-zA-Z0-9_]+.)+[a-zA-Z]{2,3}$", $email)){
echo "邮件地址格式不对!!!";
}else {
echo "邮件地址： ".$email."<br>";
}
?>
<h3><a href="FormFirst.php">返回</a></h3>
