php - 如何删除位于 img/p/的 Prestashop 无用图像

Question

在 Prestashop，当我删除一些产品时，图像仍保留在它们的目录/img/p/中，因此目前我的图像目录接近 2GB。 发现这个脚本可以删除 Prestashop 上无用的和 BBDD 未链接的图像，但我不知道为什么它只检测孤立图像而不删除它们。也许取消链接功能在 php 配置中被禁用？可能吗？还是代码错了？还有其他方法可以进行这种清理吗？

    <?php
// root path of the shop
$shop_root='/home/myweb/public_html/';
// limit number of image files to check, set to 10 for testing
$limit=1000000000;


include $shop_root . '/config/settings.inc.php';
$pdo = new PDO( 'mysql:host='._DB_SERVER_.';dbname='._DB_NAME_, _DB_USER_, _DB_PASSWD_ );
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$r=$pdo->query('select count(1) cnt from ps_image')->fetch();
echo 'count images database: '.$r['cnt'] . "<Br />";

// reset some counters
$cnt_files=0;
$cnt_checked=0;
$cnt_not_found=0;
$cnt_found=0;

for($ii=1; ($ii<=9) && ($cnt_files != $limit); $ii++)
{
        $path=$shop_root.'img/p/'.$ii;
        delImage($path);
        for($jj=0; ($jj<=9) && ($cnt_files != $limit); $jj++)
        {       
                $path=$shop_root.'img/p/'.$ii.'/'.$jj;
                delImage($path);
                for($kk=0; ($kk<=9) && ($cnt_files != $limit); $kk++)
                {
                        $path=$shop_root.'img/p/'.$ii.'/'.$jj.'/'.$kk;
                        delImage($path);
                        for($ll=0; ($ll<=9) && ($cnt_files != $limit); $ll++)
                        {
                                $path=$shop_root.'img/p/'.$ii.'/'.$jj.'/'.$kk.'/'.$ll;
                                delImage($path);
                        }       
                }
        }

}
echo 'files: '.$cnt_files.' checked: '.$cnt_checked.' not_found: '.$cnt_not_found.' found: '.$cnt_found;

function delImage($imageDir)
{
        global $limit, $pdo, $cnt_files, $cnt_checked, $cnt_not_found, $cnt_found;
        if ($handle = @opendir($imageDir)) {                    //@ is wriiten to avoid warning message and is handled in else condition
                echo $imageDir."<BR />";
                while ($cnt_files != $limit && false !== ($entry = readdir($handle))) {
                        if ($entry != "." && $entry != "..") {
                                $cnt_files++;
                                $pi = explode('-',$entry);
                                if($pi[0]>0 && !empty($pi[1])) {
                                        $cnt_checked++;
                                        if(!checkExistsDb($pdo,$pi[0])) {
                                                $cnt_not_found++;
                                                echo 'rm '.$imageDir.'/'.$entry."<BR />";
                                                unlink($imageDir.'/'.$entry);
                                        } else {
                                                $cnt_found++;
                                        }
                                }
                        }
                }
                        closedir($handle);
  }
        else
        {
                echo $imageDir." doesn't exist".'<BR />';
        }

}

function checkExistsDb($pdo, $id_image) {
        $r=$pdo->query($q='select \'ok\' ok, (select id_image from ps_image where id_image = '.(int)$id_image.') id_image');
        $row=$r->fetch();
        if($row['ok']!='ok') die( 'Problem with query, please correct');
        return $row['id_image']?true:false;
}
?>

这是一个输出片段:

/home/myweb/public_html/img/p/9/9/7
/home/myweb/public_html/img/p/9/9/7/0 doesn't exist
/home/myweb/public_html/img/p/9/9/7/1 doesn't exist
/home/myweb/public_html/img/p/9/9/7/2 doesn't exist
/home/myweb/public_html/img/p/9/9/7/3 doesn't exist
/home/myweb/public_html/img/p/9/9/7/4 doesn't exist
/home/myweb/public_html/img/p/9/9/7/5 doesn't exist
/home/myweb/public_html/img/p/9/9/7/6 doesn't exist
/home/myweb/public_html/img/p/9/9/7/7 doesn't exist
/home/myweb/public_html/img/p/9/9/7/8 doesn't exist
/home/myweb/public_html/img/p/9/9/7/9 doesn't exist
/home/myweb/public_html/img/p/9/9/8
/home/myweb/public_html/img/p/9/9/8/0 doesn't exist
/home/myweb/public_html/img/p/9/9/8/1 doesn't exist
/home/myweb/public_html/img/p/9/9/8/2 doesn't exist
/home/myweb/public_html/img/p/9/9/8/3 doesn't exist
/home/myweb/public_html/img/p/9/9/8/4 doesn't exist
/home/myweb/public_html/img/p/9/9/8/5 doesn't exist
/home/myweb/public_html/img/p/9/9/8/6 doesn't exist
/home/myweb/public_html/img/p/9/9/8/7 doesn't exist
/home/myweb/public_html/img/p/9/9/8/8 doesn't exist
/home/myweb/public_html/img/p/9/9/8/9 doesn't exist
/home/myweb/public_html/img/p/9/9/9
/home/myweb/public_html/img/p/9/9/9/0 doesn't exist
/home/myweb/public_html/img/p/9/9/9/1 doesn't exist
/home/myweb/public_html/img/p/9/9/9/2 doesn't exist
/home/myweb/public_html/img/p/9/9/9/3 doesn't exist
/home/myweb/public_html/img/p/9/9/9/4 doesn't exist
/home/myweb/public_html/img/p/9/9/9/5 doesn't exist
/home/myweb/public_html/img/p/9/9/9/6 doesn't exist
/home/myweb/public_html/img/p/9/9/9/7 doesn't exist
/home/myweb/public_html/img/p/9/9/9/8 doesn't exist
/home/myweb/public_html/img/p/9/9/9/9 doesn't exist
files: 29013 checked: 22290 not_found: 0 found: 22290

Answer 1

试试这个。在不同解决方案多次失败后，我花了很多时间来开发它。对我来说，这是最安全的方法。

<?php
####PUT THIS FILE INTO YOUR MAIN SHOP FOLDER####

// root path of the shop, almost no one needs to change something here.
$shop_root = $_SERVER['DOCUMENT_ROOT']."/"; // need to have slash / at the end
$image_folder = 'img/p/'; // also needs slash at the ennd
$scan_dir = $shop_root.$image_folder;

include_once($shop_root.'config/config.inc.php');
include $shop_root . 'config/settings.inc.php';

#---------------------------------------------#
$last_id = (int)Db::getInstance()->getValue('
    SELECT id_image FROM '._DB_PREFIX_.'image ORDER BY id_image DESC
');

$counted_images = Db::getInstance()->executeS('
    SELECT count(*) as qnt FROM '._DB_PREFIX_.'image
');
$counted_images = (int)$counted_images[0]['qnt'];


echo 'There was '.$last_id.' images in database but only '.$counted_images.' is used right now. Lets check how many of them are eating up our storage without no reason.<br>';

//$limit = 150; // for testing
$limit = $last_id; // for production

$removed_images = 0;

for ($i=1; $i <= $limit; $i++) {
    if (!imageExistsInDB($i)){
        $imageDir = str_split($i);
        $imageDir = implode('/', $imageDir);
        $path = $scan_dir.$imageDir;
        deleteImagesFromPath($path);
    }
}

function deleteImagesFromPath($path) {
    global $removed_images;
    $images = glob($path . '/*.{jpg,png,gif,jpeg}', GLOB_BRACE);
    if ($images){
        foreach ($images as $file) {
            if (is_file($file)) {
                unlink($file);
            }
        }
        $removed_images++;
        echo 'Deleted images from folder ' . $path . '/' ."<br/>";
    }
}

function imageExistsInDB($id_image){
    return Db::getInstance()->getValue('
        SELECT id_image FROM '._DB_PREFIX_.'image WHERE id_image = '.(int)$id_image
    );
}

echo '--------------------------------------<br>';
if  ($removed_images > 0)
    echo 'Hurray! We removed '.$removed_images.' product images!';
else
    echo 'Everything is ok with Your images. I did not removed any of them or I made it before. Good Job Presta!';