我一直在进行递归目录扫描,它扫描文件夹并将它们添加到我的mysql数据库(如果它还没有)。我遇到的唯一问题是无论我怎么写我的表单的Check部分它仍然跳过一些记录和/或当有一些同名的以0结尾的东西时它检测到它已经存在。 +下面的代码。
表:
CREATE TABLE IF NOT EXISTS `comics` (
`id` int(255) NOT NULL AUTO_INCREMENT,
`publisher` varchar(255) NOT NULL,
`arc` varchar(255) NOT NULL,
`issue` int(5) NOT NULL,
`title` varchar(255) NOT NULL,
`plot` longtext NOT NULL,
`price` varchar(20) NOT NULL DEFAULT '0',
`files` int(255) NOT NULL,
`size` varchar(255) NOT NULL,
`cover` text NOT NULL,
`month` int(2) unsigned zerofill NOT NULL,
`day` int(2) unsigned zerofill NOT NULL,
`year` int(4) unsigned zerofill NOT NULL,
`added` date NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `arc` (`arc`,`issue`,`title`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
记录:
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
(10463, '', 'Green Wake 10');
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
(10462, '', 'Green Wake 1');
如果在第二个插入之前存在第一个插入,则第二个插入将返回到数据库中。
现在的代码:
<?php
$base = "D:/comics/";
if (isset($_REQUEST['sub'])) {
$sub = $_REQUEST['sub'];
echo "<h2>Scanning Comics Starting With ".$sub."</h2>";
if ($handle = opendir('D:/comics/'.$sub.'/')) {
while (false !== ($entry = readdir($handle))) {
if ($entry != '$RECYCLE.BIN' && $entry != 'System Volume Information' && $entry != '.' && $entry != '..') {
$entry1 = $entry;
$entry = str_replace(" - ", ": ", $entry);
$exists = mysql_query('SELECT * FROM comics WHERE arc LIKE "'.$entry.'%"');
$exists1 = mysql_num_rows($exists);
if ($exists1 == 0) {
$directory = $base.$sub."/".$entry1;
$filecount = count(glob($directory."/"."*.*"));
$size2 = 0;
$d = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($directory),
RecursiveIteratorIterator::SELF_FIRST
);
foreach($d as $file){
$size2 += $file->getSize();
}
$size = $size2/1024;
$modified = date("Y-m-d", filemtime($directory));
mysql_query('INSERT INTO comics (arc, files, size, added) VALUES ("'.$entry.'", "'.$filecount.'", "'.$size.'", "'.$modified.'")');
print "<li>Inserted <b>".$entry."</b> With A File Count Of <b>".$filecount."</b> & A Total Size Of <b>".$size."</b> MB Last Modified On <b>".$modified."</b>.</li>";
}
}
}
}
}
?>
我试过不同的检查查询:
$exists = mysql_query('SELECT * FROM comics WHERE arc LIKE "'.$entry.'%"');
// Returns As Already Being In The Database.
$exists = mysql_query('SELECT * FROM comics WHERE arc = "'.$entry.'"');
// Returns The Successfully Imported Message (but doesn't execute the insert query) For All Folders Found. Even If It Is There Or Not.
什么是更精确的检查方法?
答案 0 :(得分:1)
由于此查询,这是正常的
$exists = mysql_query('SELECT * FROM comics WHERE arc LIKE "'.$entry.'%"');
'Green Wake 10' like 'Green Wake 1%' will return true
%运算符告诉它接受任何char。在您的规则中,如果左侧值以“绿色唤醒1”开头并以任何字符(甚至不再是字符)结束,则测试将成功
答案 1 :(得分:0)
不引用'
中的数值。您的专栏id
的类型为INT
。
所以
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
('10463', '', 'Green Wake 10');
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
('10462', '', 'Green Wake 1');
应该是
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
(10463, '', 'Green Wake 10');
INSERT INTO `comics` (`id`, `publisher`, `arc`) VALUES
('0462, '', 'Green Wake 1');