php - MySqli INSERT 不起作用，没有错误

标签 php mysql database mysqli

我的代码似乎是正确的。显示一个表单，然后当单击提交按钮时，应该执行此代码。如果文章存在，它会结束并这样说，但如果文章不存在，它不会插入数据库或给出错误或显示任何打印输出。

编辑:提供完整表格

<?php

if(!isset($_POST['submit']))
    {
    print '
<div class="container-fluid ui-widget">


<form class="form-horizontal" method="post" action="inputform.php" onsubmit="return confirm("Is all of your data correct?");">
<fieldset>

<!-- Article Input -->
<legend>Article Input</legend>

<!-- Journal Radio Buttons (value is journal ISSN)-->
<div class="form-group">
  <label class="col-md-4 control-label" for="journal_radio">Journal</label>
  <div class="col-md-4">
  <div class="radio">
    <label for="journal_radio-0">
      <input type="radio" name="journal_radio" id="journal_radio-0" value="2162-9730" checked="checked">
      MIS Quarterly
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-1">
      <input type="radio" name="journal_radio" id="journal_radio-1" value="1047-7047">
      Information Systems Research
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-2">
      <input type="radio" name="journal_radio" id="journal_radio-2" value="0742-1222">
      Journal of Management Information Systems
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-3">
      <input type="radio" name="journal_radio" id="journal_radio-3" value="1536-9323">
      Journal of the Association for Information Systems
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-4">
      <input type="radio" name="journal_radio" id="journal_radio-4" value="1476-9344">
      European Journal of Information Systems
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-5">
      <input type="radio" name="journal_radio" id="journal_radio-5" value="1365-2575">
      Information Systems Journal
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-6">
      <input type="radio" name="journal_radio" id="journal_radio-6" value="0963-8687">
      Journal of Strategic Information Systems
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-7">
      <input type="radio" name="journal_radio" id="journal_radio-7" value="0268-3962">
      Journal of Information Technology
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-8">
      <input type="radio" name="journal_radio" id="journal_radio-8" value="0167-9236">
      Decision Support Systems
    </label>
  </div>
  <div class="radio">
    <label for="journal_radio-9">
      <input type="radio" name="journal_radio" id="journal_radio-9" value="0378-7206">
      Information and Management
    </label>
  </div>
  </div>
</div>

<!-- Article Name Input-->
<div class="form-group">
  <label class="col-md-4 control-label" for="article_name">Article Name:</label>  
  <div class="col-md-5">
  <input id="article_name" name="article_name" type="text" placeholder="Article Name" class="form-control input-md" required="">
    
  </div>
</div>

<!-- Author 1-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author1_name">Author 1:</label>  
  <div class="col-md-4">
  <input id="author1_name" name="author1_name" type="text" placeholder="Author Name" class="form-control input-md" required="">
    
  </div>
</div>

<!-- Author 1 University -->
<div class="form-group">
  <label class="col-md-4 control-label" for="author1_university">University:</label>  
  <div class="col-md-4">
  <input id="author1_university" name="author1_university" type="text" placeholder="Author University" class="form-control input-md" required="">
    
  </div>
</div>

<!-- Author 2-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author2_name">Author 2:</label>  
  <div class="col-md-4">
  <input id="author2_name" name="author2_name" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 2 University-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author2_university">University:</label>  
  <div class="col-md-4">
  <input id="author2_university" name="author2_university" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 3-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author3_name">Author 3:</label>  
  <div class="col-md-4">
  <input id="author3_name" name="author3_name" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 3 University-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author3_university">University:</label>  
  <div class="col-md-4">
  <input id="author3_university" name="author3_university" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 4-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author4_name">Author 4: </label>  
  <div class="col-md-4">
  <input id="author4_name" name="author4_name" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 4 University-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author4_university">University:</label>  
  <div class="col-md-4">
  <input id="author4_university" name="author4_university" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 5-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author5_name">Author 5:</label>  
  <div class="col-md-4">
  <input id="author5_name" name="author5_name" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 5 University-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author5_university">University:</label>  
  <div class="col-md-4">
  <input id="author5_university" name="author5_university" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 6-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author6_name">Author 6:</label>  
  <div class="col-md-4">
  <input id="author6_name" name="author6_name" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Author 6 University-->
<div class="form-group">
  <label class="col-md-4 control-label" for="author6_university">University:</label>  
  <div class="col-md-4">
  <input id="author6_university" name="author6_university" type="text" placeholder="" class="form-control input-md">
    
  </div>
</div>

<!-- Select Year Published -->
<div class="form-group">
  <label class="col-md-4 control-label" for="year">Year Published</label>
  <div class="col-md-4">
    <select id="year" name="year" class="form-control">
      <option value="2010">2010</option>
      <option value="2011">2011</option>
      <option value="2012">2012</option>
      <option value="2013">2013</option>
      <option value="2014">2014</option>
      <option value="2015">2015</option>
    </select>
  </div>
</div>

<!-- Is Security Checkbox -->
<div class="form-group">
  <label class="col-md-4 control-label" for="is_security"></label>
  <div class="col-md-4">
    <label class="checkbox-inline" for="is_security-0">
      <input type="checkbox" name="is_security" id="is_security-0" value="1">
      Security Related
    </label>
  </div>
</div>

<!-- Submit Form Button -->
<div class="form-group">
  <div class="col-md-4 control-label">
    <button id="submit" name="submit" class="btn btn-primary">Submit</button>
  </div>
</div>

</fieldset>
</form>


</div>';
} 
if(isset($_POST['submit'])){
		
		$dbHost = "localhost";
		$dbUsername = "admin";
		$dbPassword = "";
		$dbName = "webdb";

		// Create connection
		$db = new mysqli($dbHost, $dbUsername, $dbPassword, $dbName);
		// Check connection
		if ($db->connect_error) {
		die("Connection failed: " . $db->connect_error);
		}

    $journal = $_POST['journal_radio'];
    $article_name = $_POST['article_name'];
    $author1 = $_POST['author1_name'];
    $author1uni = $_POST['author1_university'];
    $author2 = $_POST['author2_name'];
    $author2uni = $_POST['author2_university'];
    $author3 = $_POST['author3_name'];
    $author3uni = $_POST['author3_university'];
    $author4 = $_POST['author4_name'];
    $author4uni = $_POST['author4_university'];
    $author5 = $_POST['author5_name'];
    $author5uni = $_POST['author5_university'];
    $author6 = $_POST['author6_name'];
    $author6uni = $_POST['author6_university'];
    $year = $_POST['year'];
    $security = $_POST['is_security'];

      //check if article exist
      $articlequery = $db->query("SELECT Article_Title FROM Articles WHERE Article_Title = '$article_name'");
      if($articlequery->num_rows != 0) {
           print 'Article Already Exists';
      } else {
		//insert if doesn't exit	
		$articleinsert = "INSERT INTO Articles (ISSN, Year_Published, Is_Security, Article_Title)
		VALUES ('$journal',$year,$security,'$article_name')";

		if ($db->query($articleinsert) === TRUE) {
		echo "<script type= 'text/javascript'>alert('New record created successfully');</script>";
		} else {
		echo "<script type= 'text/javascript'>alert('Error: " . $articleinsert . "<br>" . $db->error."');</script>";
		}



          }
  		$conn->close();
       
          
    }
          
?>

我已将范围缩小到该区域，但似乎找不到问题...

$articleinsert = "INSERT INTO Articles (ISSN, Year_Published, Is_Security, Article_Title)
    VALUES ('$journal',$year,$security,'$article_name')";

    if ($db->query($articleinsert) === TRUE) {
    echo "<script type= 'text/javascript'>alert('New record created successfully');</script>";
    } else {
    echo "<script type= 'text/javascript'>alert('Error: " . $articleinsert . "<br>" . $db->error."');</script>";
    }

最佳答案

我认为

$conn->close(); should be $db->close();

关于php - MySqli INSERT 不起作用，没有错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33840147/

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