/*
* Plugin Name: APCu Object Cache
* Description: APCu backend for the WP Object Cache.
* Based on Plugin named APCu Object Cache Backend
* Plugin URI: https://wordpress.org/plugins/apcu/
* Author: Pierre Schmitz
* Author URI: https://pierre-schmitz.com/
* Plugin URI: https://wordpress.org/plugins/apcu/
*
*
* @Authors James Dugger, Jonathan Bardo
* @copyright 2017 GoDaddy Inc. 14455 N. Hayden Road Scottsdale, Arizona
*/
$oc_logged_in = false;
foreach ( $_COOKIE as $k => $v ) {
if ( preg_match( '/^comment_author|wordpress_logged_in_[a-f0-9]+|woocommerce_items_in_cart|PHPSESSID_|edd_wp_session|edd_items_in_cartcc_cart_key|ccm_token/', $k ) ) {
$oc_logged_in = true;
break;
}
}
$oc_blocked_page = ( defined( 'WP_ADMIN' ) || defined( 'DOING_AJAX' ) || defined( 'XMLRPC_REQUEST' ) || 'wp-login.php' === basename( $_SERVER['SCRIPT_FILENAME'] ) );
function wpaas_is_using_apcu() {
return version_compare( PHP_VERSION, '5.6.0', '>=' ) && function_exists( 'apcu_fetch' );
}
if ( 'cli' !== php_sapi_name() && ! $oc_logged_in && ! $oc_blocked_page && wpaas_is_using_apcu() ) :
/**
* Save the transients to the DB. The explanation is a bit too long
* for code. The tl;dr of it is that we don't have a single 'fast cache'
* source yet (like memcached) and so some long lived items like transients
* are still best cached in the db and then brought back into APC
*
* @param string $transient
* @param mixed $value
* @param int $expire
* @param boolean $site = false
*
* @return bool
*/
function wpaas_save_transient( $transient, $value, $expire, $site = false ) {
global $wp_object_cache, $wpdb;
// The 'special' transient option names
$transient_timeout = ( $site ? '_site' : '' ) . '_transient_timeout_' . $transient;
$transient = ( $site ? '_site' : '' ) . '_transient_' . $transient;
// Cap expiration at 24 hours to avoid littering the DB
if ( $expire == 0 ) {
$expire = 24 * 60 * 60;
}
// Save to object cache
$wp_object_cache->set( $transient, $value, 'options', $expire );
$wp_object_cache->set( $transient_timeout, time() + $expire, 'options', $expire );
// Update alloptions
$alloptions = $wp_object_cache->get( 'alloptions', 'options' );
$alloptions[ $transient ] = $value;
$alloptions[ $transient_timeout ] = time() + $expire;
$wp_object_cache->set( 'alloptions', $alloptions, 'options' );
// Use the normal update option logic
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
if ( $site && is_multisite() ) {
$wpdb->query(
$wpdb->prepare(
"INSERT INTO `{$wpdb->sitemeta}` ( `option_name`, `option_value`, `autoload` ) VALUES ( %s, UNIX_TIMESTAMP( NOW() ) + %d, 'yes' ) ON DUPLICATE KEY UPDATE `option_name` = VALUES ( `option_name` ), `option_value` = VALUES ( `option_value` ), `autoload` = VALUES ( `autoload` );",
$transient_timeout,
$expire
)
);
$wpdb->query(
$wpdb->prepare(
"INSERT INTO `{$wpdb->sitemeta}` ( `option_name`, `option_value`, `autoload` ) VALUES ( %s, %s, 'no' ) ON DUPLICATE KEY UPDATE `option_name` = VALUES ( `option_name` ), `option_value` = VALUES ( `option_value` ), `autoload` = VALUES ( `autoload` );",
$transient,
maybe_serialize( $value )
)
);
} else {
$wpdb->query(
$wpdb->prepare(
"INSERT INTO `{$wpdb->options}` (`option_name`, `option_value`, `autoload`) VALUES ( %s, UNIX_TIMESTAMP( NOW() ) + %d, 'yes' ) ON DUPLICATE KEY UPDATE `option_name` = VALUES ( `option_name` ), `option_value` = VALUES ( `option_value` ), `autoload` = VALUES ( `autoload` );",
$transient_timeout,
$expire
)
);
$wpdb->query(
$wpdb->prepare(
"INSERT INTO `{$wpdb->options}` (`option_name`, `option_value`, `autoload`) VALUES ( %s, %s, 'no' ) ON DUPLICATE KEY UPDATE `option_name` = VALUES ( `option_name` ), `option_value` = VALUES ( `option_value` ), `autoload` = VALUES ( `autoload` );",
$transient,
maybe_serialize( $value )
)
);
}
$wpdb->suppress_errors( $flag );
}
return true;
}
function wpaas_prune_transients() {
global $wpdb;
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb && function_exists( 'is_main_site' ) && function_exists( 'is_main_network' ) ) {
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
// Lifted straight from schema.php
// Deletes all expired transients.
// The multi-table delete syntax is used to delete the transient record from table a,
// and the corresponding transient_timeout record from table b.
$time = time();
$wpdb->query( "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, 12 ) )
AND b.option_value < $time" );
if ( is_main_site() && is_main_network() ) {
$wpdb->query( "DELETE a, b FROM $wpdb->options a, $wpdb->options b WHERE
a.option_name LIKE '\_site\_transient\_%' AND
a.option_name NOT LIKE '\_site\_transient\_timeout\_%' AND
b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) )
AND b.option_value < $time" );
}
$wpdb->suppress_errors( $flag );
}
}
/**
* If another cache was flushed or updated, sync across all servers / processes using
* the database as the authority. This uses the database as the authority for timestamps
* as well to avoid drift between servers.
* @return void
*/
function wpaas_init_sync_cache() {
global $wpdb;
if ( empty( $wpdb ) || ! ( $wpdb instanceof wpdb ) ) {
return;
}
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$result = $wpdb->get_results(
"SELECT option_name, option_value FROM `{$wpdb->options}` WHERE option_name = 'gd_system_last_cache_flush' UNION SELECT 'current_time', UNIX_TIMESTAMP( NOW() ) AS option_value;",
ARRAY_A
);
$wpdb->suppress_errors( $flag );
if ( empty( $result ) ) {
return;
}
$master_flush = false;
foreach ( $result as $row ) {
switch ( $row['option_name'] ) {
case 'current_time' :
$current_time = $row['option_value'];
break;
case 'gd_system_last_cache_flush' :
$master_flush = $row['option_value'];
break;
}
}
$local_flush = wp_cache_get( 'gd_system_last_cache_flush' );
if ( false === $local_flush || $local_flush < $master_flush ) {
wp_cache_flush( true );
wp_cache_set( 'gd_system_last_cache_flush', $current_time );
}
}
/**
* Start default implementation of object cache
*/
if ( ! defined( 'WP_APC_KEY_SALT' ) ) {
define( 'WP_APC_KEY_SALT', '' );
}
function wp_cache_add( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
if ( 'transient' == $group ) {
wpaas_save_transient( $key, $data, $expire );
return $wp_object_cache->add( "_transient_$key", $data, 'options', $expire );
} elseif ( 'site-transient' == $group ) {
wpaas_save_transient( $key, $data, $expire, true );
return $wp_object_cache->add( "_site_transient_$key", $data, 'site-options', $expire );
} else {
return $wp_object_cache->add( $key, $data, $group, $expire );
}
}
function wp_cache_incr( $key, $n = 1, $group = '' ) {
global $wp_object_cache;
return $wp_object_cache->incr2( $key, $n, $group );
}
function wp_cache_decr( $key, $n = 1, $group = '' ) {
global $wp_object_cache;
return $wp_object_cache->decr( $key, $n, $group );
}
function wp_cache_close() {
return true;
}
function wp_cache_delete( $key, $group = '' ) {
global $wp_object_cache, $wpdb;
if ( 'transient' == $group ) {
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$wpdb->query(
$wpdb->prepare(
"DELETE FROM `{$wpdb->prefix}options` WHERE option_name IN ( %s, %s );",
"_transient_{$key}",
"_transient_timeout_{$key}"
)
);
$wpdb->suppress_errors( $flag );
}
$wp_object_cache->delete( "_transient_timeout_$key", 'options' );
// Update alloptions
$alloptions = $wp_object_cache->get( 'alloptions', 'options' );
unset( $alloptions["_transient_$key"] );
unset( $alloptions["_transient_timeout_$key"] );
$wp_object_cache->set( 'alloptions', $alloptions, 'options' );
return $wp_object_cache->delete( "_transient_$key", 'options' );
} elseif ( 'site-transient' == $group ) {
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$table = $wpdb->options;
if ( is_multisite() ) {
$table = $wpdb->sitemeta;
}
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$wpdb->query(
$wpdb->prepare(
"DELETE FROM `{$table}` WHERE option_name IN ( %s, %s );",
"_transient_{$key}",
"_transient_timeout_{$key}"
)
);
$wpdb->suppress_errors( $flag );
}
$wp_object_cache->delete( "_transient_timeout_$key", 'site-options' );
// Update alloptions
$alloptions = $wp_object_cache->get( 'alloptions', 'options' );
unset( $alloptions["_site_transient_$key"] );
unset( $alloptions["_site_transient_timeout_$key"] );
$wp_object_cache->set( 'alloptions', $alloptions, 'options' );
return $wp_object_cache->delete( "_site_transient_$key", 'site-options' );
}
return $wp_object_cache->delete( $key, $group );
}
function wp_cache_flush( $local_flush = false ) {
global $wp_object_cache, $wpdb;
if ( ! $local_flush ) {
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$wpdb->query( "INSERT INTO `{$wpdb->options}` (`option_name`, `option_value`, `autoload`) VALUES ( 'gd_system_last_cache_flush', UNIX_TIMESTAMP( NOW() ), 'no' ) ON DUPLICATE KEY UPDATE `option_name` = VALUES ( `option_name` ), `option_value` = VALUES ( `option_value` ), `autoload` = VALUES ( `autoload` );" );
$wpdb->suppress_errors( $flag );
}
}
return $wp_object_cache->flush();
}
function wp_cache_get( $key, $group = '', $force = false ) {
global $wp_object_cache, $wpdb;
if ( 'transient' == $group ) {
$alloptions = $wp_object_cache->get( 'alloptions', 'options' );
if ( isset( $alloptions["_transient_$key"] ) && isset( $alloptions["_transient_timeout_$key"] ) && $alloptions["_transient_timeout_$key"] > time() ) {
return maybe_unserialize( $alloptions["_transient_$key"] );
}
$transient = $wp_object_cache->get( "_transient_$key", 'options', $force );
$timeout = $wp_object_cache->get( "_transient_timeout_$key", 'options', $force );
if ( false !== $transient && ! empty( $timeout ) && $timeout > time() ) {
return maybe_unserialize( $transient );
}
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$result = $wpdb->get_results(
$wpdb->prepare(
"SELECT option_name, option_value FROM `{$wpdb->options}` WHERE option_name IN ( %s, %s ) UNION SELECT 'current_time', UNIX_TIMESTAMP( NOW() ) AS option_value;",
"_transient_{$key}",
"_transient_timeout_{$key}"
),
ARRAY_A
);
$wpdb->suppress_errors( $flag );
if ( ! empty( $result ) ) {
$transient = false;
$timeout = false;
$current_time = time();
foreach ( $result as $row ) {
switch ( $row['option_name'] ) {
case "_transient_$key" :
$transient = $row['option_value'];
break;
case "_transient_timeout_$key" :
$timeout = $row['option_value'];
break;
case 'current_time' :
$current_time = $row['option_value'];
break;
}
}
if ( false !== $transient && ! empty( $timeout ) && $timeout > $current_time ) {
return maybe_unserialize( $transient );
}
}
}
return false;
} elseif ( 'site-transient' == $group ) {
$transient = $wp_object_cache->get( "_site_transient_$key", 'options', $force );
$timeout = $wp_object_cache->get( "_site_transient_timeout_$key", 'options', $force );
if ( false !== $transient && ! empty( $timeout ) && $timeout > time() ) {
return maybe_unserialize( $transient );
}
if ( ! empty( $wpdb ) && $wpdb instanceof wpdb ) {
$table = $wpdb->options;
if ( is_multisite() ) {
$table = $wpdb->sitemeta;
}
$flag = $wpdb->suppress_errors;
$wpdb->suppress_errors( true );
$result = $wpdb->get_results(
$wpdb->prepare(
"SELECT option_name, option_value FROM `{$table}` WHERE option_name IN ( %s, %s ) UNION SELECT 'current_time', UNIX_TIMESTAMP( NOW() ) AS option_value;",
"_site_transient_{$key}",
"_site_transient_timeout_{$key}"
),
ARRAY_A
);
$wpdb->suppress_errors( $flag );
if ( ! empty( $result ) ) {
$transient = false;
$timeout = false;
$current_time = time();
foreach ( $result as $row ) {
switch ( $row['option_name'] ) {
case "_site_transient_$key" :
$transient = $row['option_value'];
break;
case "_site_transient_timeout_$key" :
$timeout = $row['option_value'];
break;
case 'current_time' :
$current_time = $row['option_value'];
break;
}
}
if ( false !== $transient && ! empty( $timeout ) && $timeout > $current_time ) {
return maybe_unserialize( $transient );
}
}
}
return false;
} else {
return $wp_object_cache->get( $key, $group, $force );
}
}
function wp_cache_init() {
global $wp_object_cache;
if ( mt_rand( 1, 100 ) == 42 ) {
wpaas_prune_transients();
}
add_action( 'muplugins_loaded', 'wpaas_init_sync_cache' );
$wp_object_cache = new APCu_Object_Cache();
}
function wp_cache_replace( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
return $wp_object_cache->replace( $key, $data, $group, $expire );
}
function wp_cache_set( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
if ( defined( 'WP_INSTALLING' ) == false ) {
if ( 'transient' == $group ) {
return wpaas_save_transient( $key, $data, $expire );
} elseif ( 'site-transient' == $group ) {
return wpaas_save_transient( $key, $data, $expire, true );
} else {
return $wp_object_cache->set( $key, $data, $group, $expire );
}
} else {
return $wp_object_cache->delete( $key, $group );
}
}
function wp_cache_switch_to_blog( $blog_id ) {
global $wp_object_cache;
return $wp_object_cache->switch_to_blog( $blog_id );
}
function wp_cache_add_global_groups( $groups ) {
global $wp_object_cache;
$wp_object_cache->add_global_groups( $groups );
}
function wp_cache_add_non_persistent_groups( $groups ) {
global $wp_object_cache;
$wp_object_cache->add_non_persistent_groups( $groups );
}
class GD_APCu_Object_Cache {
private $prefix = '';
private $local_cache = array();
private $global_groups = array();
private $non_persistent_groups = array();
private $multisite = false;
private $blog_prefix = '';
public function __construct() {
global $table_prefix;
$this->multisite = is_multisite();
$this->blog_prefix = $this->multisite ? get_current_blog_id() . ':' : '';
$this->prefix = DB_HOST . '.' . DB_NAME . '.' . $table_prefix;
}
private function get_group( $group ) {
return empty( $group ) ? 'default' : $group;
}
private function get_key( $group, $key ) {
if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) {
return $this->prefix . '.' . $group . '.' . $this->blog_prefix . ':' . $key;
} else {
return $this->prefix . '.' . $group . '.' . $key;
}
}
public function add( $key, $data, $group = 'default', $expire = 0 ) {
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( function_exists( 'wp_suspend_cache_addition' ) && wp_suspend_cache_addition() ) {
return false;
}
if ( isset( $this->local_cache[ $group ][ $key ] ) ) {
return false;
}
// FIXME: Somehow apcu_add does not return false if key already exists
if ( ! isset( $this->non_persistent_groups[ $group ] ) && apcu_exists( $key ) ) {
return false;
}
if ( is_object( $data ) ) {
$this->local_cache[ $group ][ $key ] = clone $data;
} else {
$this->local_cache[ $group ][ $key ] = $data;
}
if ( ! isset( $this->non_persistent_groups[ $group ] ) ) {
return apcu_add( $key, $data, (int) $expire );
}
return true;
}
public function add_global_groups( $groups ) {
if ( is_array( $groups ) ) {
foreach ( $groups as $group ) {
$this->global_groups[ $group ] = true;
}
} else {
$this->global_groups[ $groups ] = true;
}
}
public function add_non_persistent_groups( $groups ) {
if ( is_array( $groups ) ) {
foreach ( $groups as $group ) {
$this->non_persistent_groups[ $group ] = true;
}
} else {
$this->non_persistent_groups[ $groups ] = true;
}
}
public function decr( $key, $offset = 1, $group = 'default' ) {
if ( $offset < 0 ) {
return $this->incr( $key, abs( $offset ), $group );
}
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( isset( $this->local_cache[ $group ][ $key ] ) && $this->local_cache[ $group ][ $key ] - $offset >= 0 ) {
$this->local_cache[ $group ][ $key ] -= $offset;
} else {
$this->local_cache[ $group ][ $key ] = 0;
}
if ( isset( $this->non_persistent_groups[ $group ] ) ) {
return $this->local_cache[ $group ][ $key ];
} else {
$value = apcu_dec( $key, $offset );
if ( $value < 0 ) {
apcu_store( $key, 0 );
return 0;
}
return $value;
}
}
public function delete( $key, $group = 'default', $force = false ) {
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
unset( $this->local_cache[ $group ][ $key ] );
if ( ! isset( $this->non_persistent_groups[ $group ] ) ) {
return apcu_delete( $key );
}
return true;
}
public function flush() {
$this->local_cache = array();
// TODO: only clear our own entries
apcu_clear_cache();
return true;
}
public function get( $key, $group = 'default', $force = false, &$found = null ) {
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( ! $force && isset( $this->local_cache[ $group ][ $key ] ) ) {
$found = true;
if ( is_object( $this->local_cache[ $group ][ $key ] ) ) {
return clone $this->local_cache[ $group ][ $key ];
} else {
return $this->local_cache[ $group ][ $key ];
}
} elseif ( isset( $this->non_persistent_groups[ $group ] ) ) {
$found = false;
return false;
} else {
$value = @apcu_fetch( $key, $found );
if ( $found ) {
if ( $force ) {
$this->local_cache[ $group ][ $key ] = $value;
}
return $value;
} else {
return false;
}
}
}
public function incr2( $key, $offset = 1, $group = 'default' ) {
if ( $offset < 0 ) {
return $this->decr( $key, abs( $offset ), $group );
}
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( isset( $this->local_cache[ $group ][ $key ] ) && $this->local_cache[ $group ][ $key ] + $offset >= 0 ) {
$this->local_cache[ $group ][ $key ] += $offset;
} else {
$this->local_cache[ $group ][ $key ] = 0;
}
if ( isset( $this->non_persistent_groups[ $group ] ) ) {
return $this->local_cache[ $group ][ $key ];
} else if ( function_exists( 'apcu_inc' ) ) {
$value = apcu_inc( $key, $offset );
if ( $value < 0 ) {
apcu_store( $key, 0 );
return 0;
}
return $value;
}
return false;
}
public function replace( $key, $data, $group = 'default', $expire = 0 ) {
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( isset( $this->non_persistent_groups[ $group ] ) ) {
if ( ! isset( $this->local_cache[ $group ][ $key ] ) ) {
return false;
}
} else {
if ( ! isset( $this->local_cache[ $group ][ $key ] ) && ! apcu_exists( $key ) ) {
return false;
}
apcu_store( $key, $data, (int) $expire );
}
if ( is_object( $data ) ) {
$this->local_cache[ $group ][ $key ] = clone $data;
} else {
$this->local_cache[ $group ][ $key ] = $data;
}
return true;
}
public function reset() {
// This function is deprecated as of WordPress 3.5
// Be safe and flush the cache if this function is still used
$this->flush();
}
public function set( $key, $data, $group = 'default', $expire = 0 ) {
$group = $this->get_group( $group );
$key = $this->get_key( $group, $key );
if ( is_object( $data ) ) {
$this->local_cache[ $group ][ $key ] = clone $data;
} else {
$this->local_cache[ $group ][ $key ] = $data;
}
if ( ! isset( $this->non_persistent_groups[ $group ] ) ) {
return apcu_store( $key, $data, (int) $expire );
}
return true;
}
public function stats() {
// Only implemented because the default cache class provides this.
// This method is never called.
echo '';
}
public function switch_to_blog( $blog_id ) {
$this->blog_prefix = $this->multisite ? $blog_id . ':' : '';
}
}
if ( function_exists( 'apcu_inc' ) ) {
class APCu_Object_Cache extends GD_APCu_Object_Cache {
function incr( $key, $offset = 1, $group = 'default' ) {
return parent::incr2( $key, $offset, $group );
}
}
} else {
class APCu_Object_Cache extends GD_APCu_Object_Cache {
// Blank
}
}
endif;
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
Warning: Cannot modify header information - headers already sent by (output started at /usr/hosting/oldpics.net/html/wp-content/object-cache.php:1) in /usr/hosting/oldpics.net/html/wp-includes/rest-api/class-wp-rest-server.php on line 1713
{"id":5069,"date":"2020-09-08T10:20:35","date_gmt":"2020-09-08T08:20:35","guid":{"rendered":"https:\/\/oldpics.net\/?p=5069"},"modified":"2020-09-08T10:20:36","modified_gmt":"2020-09-08T08:20:36","slug":"german-wwi-submarine-ub122-that-spent-92-years-underwater","status":"publish","type":"post","link":"https:\/\/oldpics.net\/german-wwi-submarine-ub122-that-spent-92-years-underwater\/","title":{"rendered":"German WWI submarine UB122 that spent 92 years underwater"},"content":{"rendered":"\n
The end of the story of this German WWI submarine wasn\u2019t heroic in any way. The vessel, which never fired any of its ten torpedoes, was handed over to the British, who decided to melt it down. However, upon entering the Thames estuary, the towing ropes collapsed, and the submarine suddenly sailed away. The escape ended at the swampy coast of Kent.<\/span><\/p>\n And yes, we remember that this German WWI submarine<\/a> ended its days just like UB122, but at a different British shore.<\/span><\/p>\n The history of this submarine surfaced at the end of 2013. Strong December tides pulled the boat closer to the shore.<\/span><\/p>\n Historians identified the submarine only after its inspection. According to archival records, in total, six German submarines were lost during the towing! Three of them – U122, U123, and UB122 – all this time were hiding somewhere in the local shallows.<\/span><\/p>\n Three British and 41 German boats sunk<\/a> during WWI around this British coastal area.<\/span><\/p>\n WWI is usually called the \u2018first modern war\u2019 \u2013 and the naval war. Many technologies were used for the first time. U-boat tech was one of them. Effective submarine combat was an especially new aspect of war. Germany concentrated on U-Boat production to fight the greater British flotilla and put pressure on its Atlantic units. German submarines had a massive surprise effect during the first years of WWI.<\/p>\n","protected":false},"excerpt":{"rendered":" This decrepit german WWI submarine appeared on the surface 92 years after the last dive. We guess that if this U-boat UB122…<\/p>\n","protected":false},"author":1,"featured_media":5070,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[46,37,98,76],"yoast_head":"\nThis decrepit german WWI submarine appeared on the surface 92 years after the last dive. We guess that if this U-boat UB122 were looking for a new job, its resume would have been extremely short. It left the shipyard of the Bremen in February 1918. And its career was over in November of the same year, with no combat record.<\/span><\/p>\n
Another German submarine trophy<\/h3>\n
It\u2019s time to go up!<\/h3>\n
Read more:\u00a0Torpedo sticks out of a Soviet submarine, 1989<\/a><\/h3>\n