Question

我了解HTML的基础知识，而不了解PHP。我找到了大量的教程，但是我找不到一个教程。我有一个mySQL数据库工作和apache运行。如何在页面上显示整个表格？我提前不知道列名。

编辑：添加并调整了代码。我的索引页面显示了这个：connect_errno) { echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error; } //$sql = "SHOW TABLES"; $sql = "select * from cpu"; //edit your table name here $res = $mysqli->query($sql); while ($row = $res->fetch_assoc()) { print_r($row); } ?>

这是我的整个index.html来源：

<?php

    $mysqli = new mysqli("192.168.1.2", "webuser", "*****", "OCN");
    if ($mysqli->connect_errno) {
        echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
    }

    //$sql = "SHOW TABLES"; 
    $sql = "select * from cpu";  //edit your table name here
    $res = $mysqli->query($sql);

    while ($row = $res->fetch_assoc()) {
        print_r($row);
    }
?>

将文件更改为.php后，错误消息更加清晰。它提醒我，我没有webuser在192.168.1.2。我再次创建了用户并提供了正确的权限。该功能似乎有效，但我会在几个小时内有更多时间来查看它。

Answer 1

这里真正的问题是您在网页上看到connect_errno) { echo "Failed to...，而不是仅以Failed to...开头的行。

因为您的浏览器认为从<?php到$mysqli->的代码是HTML代码（由于打开和关闭<>，我认为您的文件是.htm（l）文件而不是.php文件。

只需更改文件扩展名，如果PHP安装正确，它应该可以正常工作。

Answer 2

<?php

    $mysqli = new mysqli("localhost", "root", "", "database");
    if ($mysqli->connect_errno) {
        echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
    }

    //$sql = "SHOW TABLES"; 
    $sql = "select * from tbl_comment";  //edit your table name here
    $res = $mysqli->query($sql);

    while ($row = $res->fetch_assoc()) {
        print_r($row);
    }
?>

Answer 3

据我所知。您想要显示值，但不知道列名称。如果是这样，试试这个。

    $mysqli = new mysqli("192.168.1.2", "webuser", "*****", "OCN");
    if ($mysqli->connect_errno) {
        echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
    }

    //$sql = "SHOW TABLES"; 
    $sql = "select * from cpu";  //edit your table name here
    $res = $mysqli->query($sql);

    while ($row = $res->fetch_assoc()) {
        foreach($row as $ind => $val)
        {
            echo "Column name: $ind, Column Value: $val<br />";
        }
        echo "<hr />";
    }
?>

用php打印整个mysql表

3 个答案: