我一直在尝试为我的画廊制作一个新的小部件，它可以向我显示最近更新的相册。最后上传的图像始终具有较高的pid，并且这些图像只能位于一个相册中。
但是长时间尝试做某事后，我做了一些事，但遇到两个问题： 第一：没有专辑标题。 第二：它没有显示我选择的拇指。
这是我的代码
git push --force在cpgp7_pictures中，您将找到：“ pid”，“ aid”，“ filepath”，“ filename”等。 在cpgp7_albums中，您会找到：“ aid”，“ title”，“ thumb”（封面的pid）
示例：
<?php
require_once('include/config.inc.php');
header("Content-type: application/x-javascript");
$connect = mysql_connect('localhost','user','pass') or die('Error conexion server');
$connect_db = mysql_select_db('database', $connect) or die ('Error conexion base de datos');
$resultado = mysql_query(" SELECT DISTINCT(aid) FROM cpgq7_pictures ORDER BY pid DESC LIMIT 0 ,6", $connect) or die('Ningun album encontrado');
echo 'document.write(\'';
if(mysql_num_rows($resultado) == 0){
echo 'Ningun album obtenido';
} else {
echo '<div class="photos"> ';
while($row = mysql_fetch_array($resultado)){
echo ' ';
$album_id = $row['aid'];
$subresult = mysql_query("SELECT * FROM cpgq7_pictures where aid=$album_id order by pid DESC LIMIT 0, 6");
$album_title = mysql_query("SELECT * FROM cpgq7_albums where aid=$album_id DESC LIMIT 0, 6");
if(mysql_num_rows($subresult) == 0){
$album_img = "http://arianagrandechile.net/galeria/thumbs/thumb_nopic.png";
} else {
while($subrow = mysql_fetch_array($subresult)){
$album_img = "http://arianagrandechile.net/galeria/albums/".$subrow['filepath'].'normal_'.$subrow['filename'] .$subrow['datebrowse'];
}
}
echo '<div class="g-album">';
echo '<a href="http://arianagrandechile.net/galeria/thumbnails.php?album='.$album_id.' " target="_blank"><img src="'.$album_img.'" alt="" /></a>';
echo '<div class="g-title"><a href="http://arianagrandechile.net/galeria/thumbnails.php?album='.$album_id.' " target="_blank">'.$album_title.'</a></div>';
echo "</div>";
}
echo '</div>';
}
echo '\');';
?>
加载的窗口小部件应类似于：
cpgp7_pictures
pid aid filepath filename
21074 159 userpics/10002/ CREATIONS00004.jpg
21073 405 userpics/10002/ LMH00003.jpg
21072 405 userpics/10002/ LMH00002.jpg
21071 405 userpics/10002/ LMH00001.jpg
cpgp7_albums
aid title thumb
405 T-Mobile, Las Vegas - CreationsOfLa 21074
159 Love Me Harder - Jones Crow 21071
有人可以帮我吗？
答案 0 :(得分：0)
与其在PHP中进行联接，不如使用单个SQL查询来获取数据。
SELECT *
FROM `cpgq7_pictures` a
JOIN `cpgq7_albums` b
ON a.`aid` = b.`aid`
GROUP BY a.`aid`, a.`pid`
ORDER BY a.`aid`, a.`pid` DESC
LIMIT 0, 6
您无需限制cpgq7_albums中的行，因为每张照片只应匹配一张相册。
编辑 创建了一个SQLFiddle以显示查询
MySQL 5.6模式设置：
CREATE TABLE IF NOT EXISTS `cpgp7_pictures` (
`pid` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT 'Primary Key',
`aid` INT(11) UNSIGNED NULL DEFAULT NULL,
`filepath` VARCHAR(200) NOT NULL DEFAULT '',
`filename` VARCHAR(200) NOT NULL DEFAULT '',
PRIMARY KEY (`pid`)
)
ENGINE=MyISAM
AUTO_INCREMENT=1
DEFAULT CHARSET=utf8
COLLATE=utf8_unicode_ci
COMMENT '';
CREATE TABLE IF NOT EXISTS `cpgp7_albums` (
`aid` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT 'Primary Key',
`title` VARCHAR(200) NOT NULL DEFAULT '',
`thumb` INT(11) UNSIGNED NULL DEFAULT NULL,
PRIMARY KEY (`aid`)
)
ENGINE=MyISAM
AUTO_INCREMENT=1
DEFAULT CHARSET=utf8
COLLATE=utf8_unicode_ci
COMMENT '';
INSERT INTO `cpgp7_pictures`
(`pid`,`aid`,`filepath`,`filename`)
VALUES
(21074,159,'userpics/10002/','CREATIONS00004.jpg'),
(21073,405,'userpics/10002/','LMH00003.jpg'),
(21072,405,'userpics/10002/','LMH00002.jpg'),
(21071,405,'userpics/10002/','LMH00001.jpg');
INSERT INTO `cpgp7_albums`
(`aid`,`title`,`thumb`)
VALUES
(405,'T-Mobile, Las Vegas - CreationsOfLa',21074),
(159,'Love Me Harder - Jones Crow',21071)
查询1 ：
SELECT *
FROM `cpgp7_pictures` a
JOIN `cpgp7_albums` b
ON a.`aid` = b.`aid`
GROUP BY a.`aid`, a.`pid`
ORDER BY a.`aid`, a.`pid` DESC
LIMIT 0, 6
Results ：
| pid | aid | filepath | filename | aid | title | thumb |
|-------|-----|-----------------|--------------------|-----|-------------------------------------|-------|
| 21074 | 159 | userpics/10002/ | CREATIONS00004.jpg | 159 | Love Me Harder - Jones Crow | 21071 |
| 21073 | 405 | userpics/10002/ | LMH00003.jpg | 405 | T-Mobile, Las Vegas - CreationsOfLa | 21074 |
| 21072 | 405 | userpics/10002/ | LMH00002.jpg | 405 | T-Mobile, Las Vegas - CreationsOfLa | 21074 |
| 21071 | 405 | userpics/10002/ | LMH00001.jpg | 405 | T-Mobile, Las Vegas - CreationsOfLa | 21074 |
第二次编辑
用于运行查询和输出div的PHP代码。
<?php
$mysqli = new mysqli($host,$user,$pass,$dbname);
if($mysqli->connect_errno) {
echo "<p>Error connecting to db: ".$mysqli->connect_errno.", ".$mysqli->connect_error."</p>\n";
} else {
$qstr = "";
$qstr .= "SELECT\n";
$qstr .= " a.`aid`,\n";
$qstr .= " a.`pid`,\n";
$qstr .= " a.`filepath`,\n";
$qstr .= " a.`filename`,\n";
$qstr .= " b.`title`,\n";
$qstr .= " b.`thumb`\n";
$qstr .= "FROM `cpgp7_pictures` a\n";
$qstr .= "JOIN `cpgp7_albums` b\n";
$qstr .= " ON a.`aid` = b.`aid`\n";
$qstr .= "GROUP BY a.`aid`\n";
$qstr .= "ORDER BY a.`aid`\n";
$qstr .= "LIMIT 0, 6;";
$results = $mysqli->query($qstr);
if($results) {
while($row = $results=>fetch_assoc()) {
echo "<div class='photos'>\n";
echo " <div class='g-album'>\n";
echo " <a href='http://arianagrandechile.net/galeria/thumbnails.php?album=".$row['aid']."' target='_blank'><img src='http://arianagrandechile.net/galeria/albums/".$row['filepath']."normal_".$row['filename']."' alt='' /></a>\n";
echo " <div class='g-title'><a href='http://arianagrandechile.net/galeria/thumbnails.php?album=$row['aid']' target='_blank'>".$row['title']."</a></div>\n";
echo "</div>\n";
}
}
}
?>