如何通过PHP页面输入/输出.CSV数据？

时间：2019-02-13 03:21:00

标签： php html csv

我有下面的作业，并且在第3步中停留在名为 inputforassignment2.php 的代码文件中–基本上，我试图将行添加（添加）到现有数据（歌曲（.svv文件），通过带有输入字段的文件进行。我试图修复该代码（我是从网站上获得的，请参阅下面的示例源代码，但它返回错误或为每个输入在行中创建空白和数字数据。

分配：创建一个简单的PHP页面，该页面可读写.CSV文件

  1. .CSV文件应包含您喜欢的项目的列表（对于 例如：歌曲，游戏，书籍，作者等..）。您的每条记录 文件应至少包含3个您喜欢的商品的属性。 另外，它至少应有7条记录。 -这部分完成了

  2. PHP应该读取文件并在带有TABLE的TABLE中显示记录 您喜欢的商品的每个属性的相应标题。 -这部分完成了

  3. 此外，页面中应该有一个链接（ <<我做了那部分），该链接指向另一个页面，可以在该页面中添加新记录。然后，列表应显示所有以前的记录以及新的记录。 （ <<我被困住的地方）

-我当前的所有源文件：

song.csv 

Song Title,Artist,Track Year
FLY,Sik-K,2017
Doverstreet,RIN,2017
Half Moon,Dean,2016
Blacklist,Loopy,2017
N/A,JooYoung,2018
Heyahe,ONE,2017
ADY,Sik-K,2017

assignment2.php how this php code displays song.csv 

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Assignment 2</title>
</head>
<?php

echo "<table border=1> ";

$f = fopen("song.csv", "r"); //open a file in read mode

while (($line = fgetcsv($f)) !== false) { //read the each line of csv file

echo "<tr>"; //for printing in the table

foreach ($line as $cell) { //each data of line

echo "<td>" . htmlspecialchars($cell) . "</td>"; //print in the table

}

echo "</tr> ";

}

fclose($f); //close file

echo " </table>";
	?>
	<a href="assignment2/inputformassignment2.php">Click here to add more songs!</a>
<body>
</body>
</html>

inputformassignment2.php 

<?php
//index.php

$error = '';
$name = '';
$email = '';
$subject = '';


function clean_text($string)
{
 $string = trim($string);
 $string = stripslashes($string);
 $string = htmlspecialchars($string);
 return $string;
}

if(isset($_POST["submit"]))
{
 if(empty($_POST["name"]))
 {
  $error .= '<p><label class="text-danger">Please Enter your Name</label></p>';
 }
 else
 {
  $name = clean_text($_POST["name"]);
  if(!preg_match("/^[a-zA-Z ]*$/",$name))
  {
   $error .= '<p><label class="text-danger">Only letters and white space allowed</label></p>';
  }
 }
 
 if(empty($_POST["subject"]))
 {
  $error .= '<p><label class="text-danger">Subject is required</label></p>';
 }
 else
 {
  $subject = clean_text($_POST["subject"]);
 }
 
 if($error == '')
 {
  $file_open = fopen("contact_data.csv", "a");
  $no_rows = count(file("contact_data.csv"));
  if($no_rows > 1)
  {
   $no_rows = ($no_rows - 1) + 1;
  }
  $form_data = array(
   'sr_no'  => $no_rows,
   'name'  => $name,
   'email'  => $email,
   'subject' => $subject,

  );
  fputcsv($file_open, $form_data);
  $error = '<label class="text-success">Thank you for contacting us</label>';
  $name = '';
  $email = '';
  $subject = '';
 }
}

?>
<!DOCTYPE html>
<html>
 <head>
  <title>Add A New Song</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 </head>
 <body>
  <br />
  <div class="container">
   <h2 align="center">Add A New Song</h2>
   <br />
   <div class="col-md-6" style="margin:0 auto; float:none;">
    <form method="post">
     <h3 align="center">Type below:</h3>
     <br />
     <?php echo $error; ?>
     <div class="form-group">
      <label>Song Title</label>
      <input type="text" name="name" placeholder="Type your song title" class="form-control" value="<?php echo $name; ?>" />
     </div>
     <div class="form-group">
      <label>Song Artist</label>
      <input type="text" name="email" class="form-control" placeholder="Type the song artist here" value="<?php echo $email; ?>" />
     </div>
     <div class="form-group">
      <label>Track Year</label>
      <input type="text" name="subject" class="form-control" placeholder="Put the song's track year here" value="<?php echo $subject; ?>" />
     </div>
     <div class="form-group" align="center">
      <input type="submit" name="submit" class="btn btn-info" value="Submit" />
     </div>
    </form>
   </div>
  </div>
 </body>
</html>

从网站获得的示例源代码：

<?php
//index.php

$error = '';
$name = '';
$email = '';
$subject = '';
$message = '';

function clean_text($string)
{
 $string = trim($string);
 $string = stripslashes($string);
 $string = htmlspecialchars($string);
 return $string;
}

if(isset($_POST["submit"]))
{
 if(empty($_POST["name"]))
 {
  $error .= '<p><label class="text-danger">Please Enter your Name</label></p>';
 }
 else
 {
  $name = clean_text($_POST["name"]);
  if(!preg_match("/^[a-zA-Z ]*$/",$name))
  {
   $error .= '<p><label class="text-danger">Only letters and white space allowed</label></p>';
  }
 }
 if(empty($_POST["email"]))
 {
  $error .= '<p><label class="text-danger">Please Enter your Email</label></p>';
 }
 else
 {
  $email = clean_text($_POST["email"]);
  if(!filter_var($email, FILTER_VALIDATE_EMAIL))
  {
   $error .= '<p><label class="text-danger">Invalid email format</label></p>';
  }
 }
 if(empty($_POST["subject"]))
 {
  $error .= '<p><label class="text-danger">Subject is required</label></p>';
 }
 else
 {
  $subject = clean_text($_POST["subject"]);
 }
 if(empty($_POST["message"]))
 {
  $error .= '<p><label class="text-danger">Message is required</label></p>';
 }
 else
 {
  $message = clean_text($_POST["message"]);
 }

 if($error == '')
 {
  $file_open = fopen("contact_data.csv", "a");
  $no_rows = count(file("contact_data.csv"));
  if($no_rows > 1)
  {
   $no_rows = ($no_rows - 1) + 1;
  }
  $form_data = array(
   'sr_no'  => $no_rows,
   'name'  => $name,
   'email'  => $email,
   'subject' => $subject,
   'message' => $message
  );
  fputcsv($file_open, $form_data);
  $error = '<label class="text-success">Thank you for contacting us</label>';
  $name = '';
  $email = '';
  $subject = '';
  $message = '';
 }
}

?>
<!DOCTYPE html>
<html>
 <head>
  <title>How to Store Form data in CSV File using PHP</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 </head>
 <body>
  <br />
  <div class="container">
   <h2 align="center">How to Store Form data in CSV File using PHP</h2>
   <br />
   <div class="col-md-6" style="margin:0 auto; float:none;">
    <form method="post">
     <h3 align="center">Contact Form</h3>
     <br />
     <?php echo $error; ?>
     <div class="form-group">
      <label>Enter Name</label>
      <input type="text" name="name" placeholder="Enter Name" class="form-control" value="<?php echo $name; ?>" />
     </div>
     <div class="form-group">
      <label>Enter Email</label>
      <input type="text" name="email" class="form-control" placeholder="Enter Email" value="<?php echo $email; ?>" />
     </div>
     <div class="form-group">
      <label>Enter Subject</label>
      <input type="text" name="subject" class="form-control" placeholder="Enter Subject" value="<?php echo $subject; ?>" />
     </div>
     <div class="form-group">
      <label>Enter Message</label>
      <textarea name="message" class="form-control" placeholder="Enter Message"><?php echo $message; ?></textarea>
     </div>
     <div class="form-group" align="center">
      <input type="submit" name="submit" class="btn btn-info" value="Submit" />
     </div>
    </form>
   </div>
  </div>
 </body>
</html>

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