MySQL / PHP foreach仍然只在数据库中显示 [英] MySQL/PHP foreach still only displaying first in database

问题描述

我从数据库中查询结果，其中应查询多个结果。但是，当我尝试显示查询的结果，只有一个结果显示，所以我试图使用foreach函数，但它仍然不工作。我被打败了，不知道我做错了什么。

I am querying results from a database, where more than one result should be queried. However, when I tried displaying the result of the query, only one result showed, so I tried to use a foreach function, but it's still not working. I'm beat, no idea what I'm doing wrong. Anyone have a good idea of what's going wrong?

以下是MySQL查询代码：

Here's the MySQL query code:

<?php


    //Database Information 
    $dbhost = ""; 
    $dbname = ""; 
    $dbuser = ""; 
    $dbpass = ""; 

    //Connect to database 
    mysql_connect ( $dbhost, $dbuser, $dbpass)or die("Could not connect: ".mysql_error()); 
    mysql_select_db($dbname) or die(mysql_error()); 

    $filename = $_GET['filename'];

$new_captions = mysql_query("SELECT * from captions where image = 'http://math.stanford.edu/inc/img/PalmDrive.png' ORDER BY idnum DESC LIMIT 5");
while($rows = mysql_fetch_array($new_captions)){
    $caption = $rows;
    }

?>

这里是foreach：

And here's the foreach:

<?php foreach($caption as $rows) {?>

<div id="set_caption" style="width:<?php echo $caption['width'];?>px; height:<?php echo $caption['height'];?>px; left:<?php echo $caption['posleft'];?>px; top:<?php echo $caption['postop'];?>px;"><?php echo $caption['text'];?></div>

<?php } ?>

推荐答案

您有以下错误。

1. $ caption未声明。


2. 使用array_push或$ caption [] = $ rows ;制作字幕数组。



3. 在foreach中使用$ row变量。

1. $caption is not declare before.
2. use array_push or $caption[] = $rows; to make caption array.

3. Use $row variable in the foreach.

//Database Information 
$dbhost = ""; 
$dbname = ""; 
$dbuser = ""; 
$dbpass = ""; 

//Connect to database 
mysql_connect ( $dbhost, $dbuser, $dbpass)or die("Could not connect: ".mysql_error()); 
mysql_select_db($dbname) or die(mysql_error()); 

$filename = $_GET['filename'];

$new_captions = mysql_query("SELECT * from captions where image = 'http://math.stanford.edu/inc/img/PalmDrive.png' ORDER BY idnum DESC LIMIT 5");

$caption = array();

while($rows = mysql_fetch_array($new_captions)){
     $caption[] = $rows;
}

foreach($caption as $row) {        
<div id="set_caption" 
     style="width:<?php echo $row['width'];?>px; 
            height:<?php echo $row['height'];?>px; 
            left:<?php echo $row['posleft'];?>px;  
            top:<?php echo $row['postop'];?>px;">
     <?php echo $row['text'];?>
</div>        

}

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