我是php的新手。提交表单时，数据必须存储在数据库中。当我开始编码它工作正常但后来数据没有插入数据库我试图将表单详细信息插入数据库但无法定期插入。有时，数据存储在数据库中，但大多数情况下，它不存储。所以请帮助我......
php版本：7 和MySQL数据库
形式
<form role="form" class="register-form" method="post" action="aluminiregdb.php">
<center><h2>Alumni Registration</h2></center>
<hr class="colorgraph">
<div class="row">
<div class="col-xs-12 col-sm-6 col-md-6">
<div class="form-group">
<input type="text" name="first_name" id="first_name" class="form-control input-lg" placeholder="First Name" tabindex="1">
</div>
</div>
<div class="col-xs-12 col-sm-6 col-md-6">
<div class="form-group">
<input type="text" name="last_name" id="last_name" class="form-control input-lg" placeholder="Last Name" tabindex="2">
</div>
</div>
</div>
<div class="form-group">
<input type="number" name="roll_number" id="roll_number" class="form-control input-lg" placeholder="Roll Number" tabindex="3">
</div>
<div class="form-group">
<input type="email" name="email" id="email" class="form-control input-lg" placeholder="Email Address" tabindex="4">
</div>
<div class="row">
<div class="col-xs-12 col-lg-12 col-sm-6 col-md-6 ">
<select class="form-group form-control input-lg" name="SelectInstitution">
<option value="select">Select Institution</option>
<option value="sdes">Sree Dattha institute of Engineering and science (SDES)</option>
<option value="sdgi">Sree Dattha group of istitutions Integrated Campus (SDGI)</option>
<option value="sdip">Sree Dattha institute of Pharmacy (SDIP)</option>
<option value="sdbn">Sree Dattha Brindavan institute of Teacher Education (SDBN)</option>
<option value="sdbd">Sree Dattha Brindavan institute of Diploma (SDBD)</option>
<option value="bits">Brindavan institute of Teacher Education (BITS)</option>
</select>
</div>
</div>
<div class="row">
<div class="col-xs-12 col-lg-12 col-sm-6 col-md-6 ">
<select class="form-group form-control input-lg" name="SelectInstitutiondegree">
<option value="select">Select Degree Obtained</option>
<option value="B.Tech">B.Tech</option>
<option value="M.Tech">M.Tech</option>
<option value="MBA">MBA</option>
<option value="Polytechnic">Polytechnic</option>
<option value="B.Pharm">B.Pharm</option>
<option value="M.Pharm">M.Pharm</option>
<option value="Pharm.D">Pharm.D</option>
<option value="B.Ed">B.Ed</option>
</select>
</div>
</div>
<div class="row">
<div class="col-xs-12 col-sm-6 col-md-12">
<div class="form-group">
<input type="text" name="program" id="program" class="form-control input-lg" placeholder="Program : CSE or ECE or B.Pharm or M.Pharm or B.Ed etc..." tabindex="5">
</div>
</div>
</div>
<div class="form-group">
<input type="number" name="year" id="year" min="2000" class="form-control input-lg" placeholder="Completion Year Of Graduation" tabindex="6">
</div>
<div class="form-group">
<input type="date" name="dob" id="dob" class="form-control input-lg" placeholder=" Date of Birth : 1994-07-23" tabindex="7">
</div>
<div class="form-group">
<input type="number" name="mobile" id="mobile" class="form-control input-lg" placeholder="Mobile Number" tabindex="8">
</div>
<div class="form-group">
<textarea class="form-control form-control input-lg" name="adress" rows="6" data-rule="required" data-msg="Please write something for us" placeholder="Address"></textarea>
<div class="validation"></div>
</div>
<div class="row">
<div class="col-xs-12 col-sm-6 col-md-12">
<div class="form-group input-lg">
<label for="Status">Current Status :  </label>
<label class="radio-inline">
<input type="radio" name="optradio" value="Working" onclick="doClick(this)">Working
</label>
<label class="radio-inline">
<input type="radio" name="optradio" value="Self-Employed" onclick="doClick(this)">Self-Employed
</label>
<label class="radio-inline">
<input type="radio" name="optradio" value="Studying" onclick="doClick(this)">Studying
</label>
<label class="radio-inline">
<input type="radio" name="optradio" value="Home Maker" onclick="doClick(this)">Home Maker
</label>
</div>
</div>
</div>
<div class="row" id="textbox" style="display:none">
<div class="col-xs-12 col-sm-6 col-md-12">
<div class="form-group">
<input type="text" name="org_name" id="org_name" class="form-control input-lg" placeholder="Organization Name" tabindex="9">
</div>
</div>
<div class="col-xs-12 col-sm-6 col-md-12">
<div class="form-group">
<input type="text" name="designatin" id="designation" class="form-control input-lg" placeholder="Designation in your Company" tabindex="10">
</div>
</div>
</div>
<hr class="colorgraph">
<div class="row">
<div class="col-xs-12 col-md-12"><input align="center" name="alumniregs" type="submit" value="Submit" class="btn btn-theme btn-block btn-lg" tabindex="11"></div>
</div>
</form>
DBConnection的
if(isset($_POST['alumniregs'])){
if(isset($_POST['first_name'])){
$fname=$_POST['first_name'];
}
if(isset($_POST['last_name'])){
$lname=$_POST['last_name'];
}
if(isset($_POST['roll_number'])){
$roll=$_POST['roll_number'];
}
if(isset($_POST['email'])){
$email=$_POST['email'];
}
if(isset($_POST['SelectInstitution'])){
$institu=$_POST['SelectInstitution'];
}
if(isset($_POST['SelectInstitutiondegree'])){
$insttidegree=$_POST['SelectInstitutiondegree'];
}
if(isset($_POST['program'])){
$program=$_POST['program'];
}
if(isset($_POST['year'])){
$year=$_POST['year'];
}
if(isset($_POST['dob'])){
$dob=$_POST['dob'];
}
if(isset($_POST['mobile'])){
$mobile=$_POST['mobile'];
}
if(isset($_POST['adress'])){
$adress=$_POST['adress'];
}
if(isset($_POST['optradio'])){
$optradio=$_POST['optradio'];
}
if(isset($_POST['org_name'])){
$orgname=$_POST['org_name'];
}
if(isset($_POST['designatin'])){
$designatin=$_POST['designatin'];
}
$date = date('Y-m-d H:i:s');
$smt=$db->prepare("INSERT INTO `naik`.`aluminireg` (`fname`, `lname`, `rollno`, `email`, `Institution`, `degree`, `branch`, `year`, `dob`, `mobile`, `adress`, `presentstatus`, `orgname`, `designatin`,`date`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,'$date')");
$smt->bind_param('ssssssssssssss',$fname,$lname,$roll,$email,$institu,$insttidegree,$program,$year,$dob,$mobile,$adress,$optradio,$orgname,$designatin);
$smt->execute();
$smt->close();
if ($smt) {
echo "<script>alert('Item Entered Successful')</script>";
}
}
?>
配置
<?php
$dbconnection=array(
'server'=>'localhost',
'user'=>'root',
'password'=>'java',
'dbname'=>'naik'
);
$db=new mysqli(
$dbconnection['server'],
$dbconnection['user'],
$dbconnection['password'],
$dbconnection['dbname']
);
//if($db!="null"){
// echo "<script>alert('connection Successful')</script>";
//}
if($db->connect_errno>0){
echo "database connection error".$db->connect_error;
exit;
}
//echo $db->host_info;
#echo $db->connect_errno;
?>