duanoucuo7045 2016-06-27 09:20
浏览 27
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PHP在下一个按钮上逐行获取结果

I want to get single row on page and display another when click next button.

<?php
        // Database configuration
    $dbHost = 'localhost';
    $dbName = 'multimedialny';
    $dbUser = 'root';
    $dbPass = '';
        // Database connection
    $dbConnect = new mysqli($dbHost, $dbUser, $dbPass, $dbName);
        // Check database connection
    if ($dbConnect -> connect_errno) {
      echo "MySQL Connection error: " . $dbConnect -> connect_errno;
      exit();
    }
        // Database Query
    $dbQuery = "SELECT * FROM course ORDER by ID";
    $result = $dbConnect -> query($dbQuery);
    $row = $result -> fetch_array(MYSQLI_ASSOC);
        // Count number of rows in table
    $rowCount = $result -> num_rows;
?>

<html>
    <head>
        <title>Title Page</title>
    </head>
    <body>
        <?php echo $row["ID"]; ?>
        <br>
        <?php echo $row["CourseName"]; ?>
        <br>
        <?php echo $row["ModuleName"]; ?>
        <br>
        <?php echo $row["Contents"]; ?>
        <br><br>
        <a href="#">Next Result</a>
        <a href="#">Previous Result</a>
    </body>
</html>

For now i get result only of first row in table, i want to show next results when user click on next button. Is it possible to make without paginate?

My database:

CREATE TABLE `course` (
  `ID` int(11) NOT NULL,
  `CourseName` text NOT NULL COMMENT 'Kategoria kursu',
  `ModuleName` text NOT NULL COMMENT 'Nazwa modułu',
  `Contents` text
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `course` (`ID`, `CourseName`, `ModuleName`, `Contents`) VALUES
(1, 'Prawo jazdy kat. B', 'Zagadnienia podstawowe', 'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Eaque illum repellat harum reiciendis ea officia numquam iusto excepturi consequatur libero sit, nemo, iste obcaecati distinctio soluta eum molestias, eos voluptates. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odio eligendi ullam voluptatem vero soluta reiciendis, consectetur quidem aperiam consequatur, facilis et. Quasi omnis eos vitae voluptatibus. Quis accusantium, debitis esse! '),
(2, 'Prawo jazdy kat. B', 'Zagadnienia podstawowe', 'Odio eligendi ullam voluptatem vero soluta reiciendis, consectetur quidem aperiam consequatur, facilis et. Quasi omnis eos vitae voluptatibus. Quis accusantium, debitis esse! ');

ALTER TABLE `course`
  ADD PRIMARY KEY (`ID`);
  • 写回答

1条回答 默认 最新

  • duan5991518 2016-06-27 10:10
    关注

    Update your query by this:

    $start = !empty($_REQUEST['start']) ? $_REQUEST['start'] : 0 ;
    $dbQuery = "SELECT * FROM course ORDER by ID limit $start, 1 ";`
    
    <a href="<yourpg_name>?start=<?php echo ($start == 0 ) ? 0 : $start-1 ?>">Previous Result</a>
        $start++; 
    <a href="<yourpg_name>?start=<?php echo $start?>">Next Result</a>`
    

    You can do the same thing using ajax/jquery also. This is only the concept. You need to implement validation also.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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