php使用者登錄檔單驗證
阿新 • • 發佈：2019-01-11
註冊介面
register.html
<h1>使用者註冊</h1> <form method="post" action="register_verify.php"> <input type="text" placeholder="使用者名稱" name="username"><br><br> <input type="password" placeholder="密碼" name="password"><br><br> <input type="password" placeholder="重複密碼" name="password2"><br><br> <label>性別： <input type="radio" name="sex" value="男" checked="checked">男 <input type="radio" name="sex" value="女">女</label><br><br> <input type="email" placeholder="郵箱" name="email"><br><br> <button class="btn" type="submit">註冊</button> </form>
register_verify.php
<?php require "mysql.php"; //匯入mysql.php訪問資料庫 $username=$_POST['username']; $password=$_POST['password']; $password2=$_POST['password2']; $sex=$_POST['sex']; $email=$_POST['email']; if(checkEmpty($username,$password,$password2,$sex,$email)){ if(checkpwd($password,$password2)){ if(checkEmail($email)){ if(insert($username,$password,$sex,$email)) echo"註冊成功"; } } } //方法：判斷是否為空 function checkEmpty($username,$password,$password2,$sex,$email){ if($username==null||$password==null||$password2==null){ echo '<html><head><Script Language="JavaScript">alert("使用者名稱或密碼為空");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } else{ if($sex==null){ echo '<html><head><Script Language="JavaScript">alert("性別為空");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } elseif($email==null){ echo '<html><head><Script Language="JavaScript">alert("郵箱為空");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } else{ return true; } } } //方法：檢查兩次密碼是否相同 function checkpwd($password,$password2){ if($password==$password2) return true; else echo '<html><head><Script Language="JavaScript">alert("兩次密碼不一致");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } //方法：郵箱格式驗證 function checkEmail($email){ $preg = '/^(\w{1,25})@(\w{1,16})(\.(\w{1,4})){1,3}$/'; if(preg_match($preg, $email)){ return true; }else{ echo '<html><head><Script Language="JavaScript">alert("郵箱格式有誤");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } } //方法：將資料插入資料庫中 function insert($username,$password,$sex,$email){ $conn=new Mysql(); $sql="insert into user VALUE (null,'$username','$password','$sex','$email')"; $result=$conn->sql($sql); if($result){ return true; } else{ echo '<html><head><Script Language="JavaScript">alert("寫入資料庫失敗");</Script></head></html>' . "<meta http-equiv=\"refresh\" content=\"0;url=register.html\">"; } $conn->close(); }
驗證碼和資料庫的實現方法前面寫過，這裡不再贅述。
驗證碼製作：http://blog.csdn.net/c_jian/article/details/52794742