Current File : //proc/thread-self/root/var/www/knwn/wp-content/plugins/timber-library/lib/Cache/Cleaner.php
<?php
namespace Timber\Cache;
class Cleaner {
protected static function delete_transients_single_site() {
global $wpdb;
$sql = "
DELETE
a, b
FROM
{$wpdb->options} a, {$wpdb->options} b
WHERE
a.option_name LIKE '%_transient_%' AND
a.option_name NOT LIKE '%_transient_timeout_%' AND
b.option_name = CONCAT(
'_transient_timeout_',
SUBSTRING(
a.option_name,
CHAR_LENGTH('_transient_') + 1
)
)
AND b.option_value < UNIX_TIMESTAMP()
";
return $wpdb->query($sql);
}
protected static function delete_transients_multisite() {
global $wpdb;
$sql = "
DELETE
a, b
FROM
{$wpdb->sitemeta} a, {$wpdb->sitemeta} b
WHERE
a.meta_key LIKE '_site_transient_%' AND
a.meta_key NOT LIKE '_site_transient_timeout_%' AND
b.meta_key = CONCAT(
'_site_transient_timeout_',
SUBSTRING(
a.meta_key,
CHAR_LENGTH('_site_transient_') + 1
)
)
AND b.meta_value < UNIX_TIMESTAMP()
";
$clean = $wpdb->query($sql);
return $clean;
}
public static function delete_transients( ) {
global $_wp_using_ext_object_cache;
if ( $_wp_using_ext_object_cache ) {
return 0;
}
global $wpdb;
$records = 0;
// Delete transients from options table
$records .= self::delete_transients_single_site();
// Delete transients from multisite, if configured as such
if ( is_multisite() && is_main_network() ) {
$records .= self::delete_transients_multisite();
}
return $records;
}
}
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