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< ? php
/**
* These functions are needed to load WordPress .
*
* @ package WordPress
*/
/**
* Turn register globals off .
*
* @ access private
* @ since 2.1 . 0
* @ return null Will return null if register_globals PHP directive was disabled
*/
function wp_unregister_GLOBALS () {
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if ( ! ini_get ( 'register_globals' ) )
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return ;
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if ( isset ( $_REQUEST [ 'GLOBALS' ] ) )
die ( 'GLOBALS overwrite attempt detected' );
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// Variables that shouldn't be unset
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$noUnset = array ( 'GLOBALS' , '_GET' , '_POST' , '_COOKIE' , '_REQUEST' , '_SERVER' , '_ENV' , '_FILES' , 'table_prefix' );
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$input = array_merge ( $_GET , $_POST , $_COOKIE , $_SERVER , $_ENV , $_FILES , isset ( $_SESSION ) && is_array ( $_SESSION ) ? $_SESSION : array () );
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foreach ( $input as $k => $v )
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if ( ! in_array ( $k , $noUnset ) && isset ( $GLOBALS [ $k ] ) ) {
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$GLOBALS [ $k ] = NULL ;
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unset ( $GLOBALS [ $k ] );
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}
}
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/**
* Fix $_SERVER variables for various setups .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_fix_server_vars () {
global $PHP_SELF ;
// Fix for IIS when running with PHP ISAPI
if ( empty ( $_SERVER [ 'REQUEST_URI' ] ) || ( php_sapi_name () != 'cgi-fcgi' && preg_match ( '/^Microsoft-IIS\//' , $_SERVER [ 'SERVER_SOFTWARE' ] ) ) ) {
// IIS Mod-Rewrite
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if ( isset ( $_SERVER [ 'HTTP_X_ORIGINAL_URL' ] ) ) {
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$_SERVER [ 'REQUEST_URI' ] = $_SERVER [ 'HTTP_X_ORIGINAL_URL' ];
}
// IIS Isapi_Rewrite
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else if ( isset ( $_SERVER [ 'HTTP_X_REWRITE_URL' ] ) ) {
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$_SERVER [ 'REQUEST_URI' ] = $_SERVER [ 'HTTP_X_REWRITE_URL' ];
}
else
{
// Use ORIG_PATH_INFO if there is no PATH_INFO
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if ( ! isset ( $_SERVER [ 'PATH_INFO' ] ) && isset ( $_SERVER [ 'ORIG_PATH_INFO' ] ) )
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$_SERVER [ 'PATH_INFO' ] = $_SERVER [ 'ORIG_PATH_INFO' ];
// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
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if ( isset ( $_SERVER [ 'PATH_INFO' ] ) ) {
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if ( $_SERVER [ 'PATH_INFO' ] == $_SERVER [ 'SCRIPT_NAME' ] )
$_SERVER [ 'REQUEST_URI' ] = $_SERVER [ 'PATH_INFO' ];
else
$_SERVER [ 'REQUEST_URI' ] = $_SERVER [ 'SCRIPT_NAME' ] . $_SERVER [ 'PATH_INFO' ];
}
// Append the query string if it exists and isn't null
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if ( isset ( $_SERVER [ 'QUERY_STRING' ] ) && ! empty ( $_SERVER [ 'QUERY_STRING' ] ) ) {
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$_SERVER [ 'REQUEST_URI' ] .= '?' . $_SERVER [ 'QUERY_STRING' ];
}
}
}
// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
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if ( isset ( $_SERVER [ 'SCRIPT_FILENAME' ] ) && ( strpos ( $_SERVER [ 'SCRIPT_FILENAME' ], 'php.cgi' ) == strlen ( $_SERVER [ 'SCRIPT_FILENAME' ] ) - 7 ) )
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$_SERVER [ 'SCRIPT_FILENAME' ] = $_SERVER [ 'PATH_TRANSLATED' ];
// Fix for Dreamhost and other PHP as CGI hosts
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if ( strpos ( $_SERVER [ 'SCRIPT_NAME' ], 'php.cgi' ) !== false )
unset ( $_SERVER [ 'PATH_INFO' ] );
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// Fix empty PHP_SELF
$PHP_SELF = $_SERVER [ 'PHP_SELF' ];
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if ( empty ( $PHP_SELF ) )
$_SERVER [ 'PHP_SELF' ] = $PHP_SELF = preg_replace ( " /( \ ?.*)? $ / " , '' , $_SERVER [ " REQUEST_URI " ] );
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}
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/**
* Check for the required PHP version , and the MySQL extension or a database drop - in .
*
* Dies if requirements are not met .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_check_php_mysql_versions () {
// we can probably extend this function to check if wp_die() exists then use translated strings, and then use it in install.php etc.
global $required_php_version , $wp_version ;
$php_version = phpversion ();
if ( version_compare ( $required_php_version , $php_version , '>' ) )
die ( sprintf ( /*WP_I18N_OLD_PHP*/ 'Your server is running PHP version %1$s but WordPress %2%s requires at least %2%s.' /*/WP_I18N_OLD_PHP*/ , $php_version , $wp_version , $required_php_version ) );
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if ( ! extension_loaded ( 'mysql' ) && ! file_exists ( WP_CONTENT_DIR . '/db.php' ) )
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die ( /*WP_I18N_OLD_MYSQL*/ 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' /*/WP_I18N_OLD_MYSQL*/ );
}
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/**
* Dies with a maintenance message when conditions are met .
*
* Checks for a file in the WordPress root directory named " .maintenance " .
* This file will contain the variable $upgrading , set to the time the file
* was created . If the file was created less than 10 minutes ago , WordPress
* enters maintenance mode and displays a message .
*
* The default message can be replaced by using a drop - in ( maintenance . php in
* the wp - content directory ) .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_maintenance () {
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if ( ! file_exists ( ABSPATH . '.maintenance' ) || defined ( 'WP_INSTALLING' ) )
return ;
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include ( ABSPATH . '.maintenance' );
// If the $upgrading timestamp is older than 10 minutes, don't die.
if ( ( time () - $upgrading ) >= 600 )
return ;
if ( file_exists ( WP_CONTENT_DIR . '/maintenance.php' ) ) {
require_once ( WP_CONTENT_DIR . '/maintenance.php' );
die ();
}
$protocol = $_SERVER [ " SERVER_PROTOCOL " ];
if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
$protocol = 'HTTP/1.0' ;
header ( " $protocol 503 Service Unavailable " , true , 503 );
header ( 'Content-Type: text/html; charset=utf-8' );
header ( 'Retry-After: 600' );
?>
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<! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
< html xmlns = " http://www.w3.org/1999/xhtml " >
< head >
< meta http - equiv = " Content-Type " content = " text/html; charset=utf-8 " />
< title > Maintenance </ title >
</ head >
< body >
< h1 > Briefly unavailable for scheduled maintenance . Check back in a minute .</ h1 >
</ body >
</ html >
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< ? php
die ();
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}
/**
* PHP 4 standard microtime start capture .
*
* @ access private
* @ since 0.71
* @ global int $timestart Seconds and Microseconds added together from when function is called .
* @ return bool Always returns true .
*/
function timer_start () {
global $timestart ;
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$mtime = explode ( ' ' , microtime () );
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$mtime = $mtime [ 1 ] + $mtime [ 0 ];
$timestart = $mtime ;
return true ;
}
/**
* Return and / or display the time from the page start to when function is called .
*
* You can get the results and print them by doing :
* < code >
* $nTimePageTookToExecute = timer_stop ();
* echo $nTimePageTookToExecute ;
* </ code >
*
* Or instead , you can do :
* < code >
* timer_stop ( 1 );
* </ code >
* which will do what the above does . If you need the result , you can assign it to a variable , but
* most cases , you only need to echo it .
*
* @ since 0.71
* @ global int $timestart Seconds and Microseconds added together from when timer_start () is called
* @ global int $timeend Seconds and Microseconds added together from when function is called
*
* @ param int $display Use '0' or null to not echo anything and 1 to echo the total time
* @ param int $precision The amount of digits from the right of the decimal to display . Default is 3.
* @ return float The " second.microsecond " finished time calculation
*/
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function timer_stop ( $display = 0 , $precision = 3 ) { // if called like timer_stop(1), will echo $timetotal
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global $timestart , $timeend ;
$mtime = microtime ();
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$mtime = explode ( ' ' , $mtime );
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$mtime = $mtime [ 1 ] + $mtime [ 0 ];
$timeend = $mtime ;
$timetotal = $timeend - $timestart ;
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$r = ( function_exists ( 'number_format_i18n' ) ) ? number_format_i18n ( $timetotal , $precision ) : number_format ( $timetotal , $precision );
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if ( $display )
echo $r ;
return $r ;
}
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/**
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* Sets PHP error handling and handles WordPress debug mode .
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*
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* Uses three constants : WP_DEBUG , WP_DEBUG_DISPLAY , and WP_DEBUG_LOG . All three can be
* defined in wp - config . php . Example : < code > define ( 'WP_DEBUG' , true ); </ code >
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*
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* WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless WP_DEBUG is true .
* WP_DEBUG defaults defaults to false .
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*
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* When WP_DEBUG is true , all PHP notices are reported . WordPress will also display
* notices , including one when a deprecated WordPress function , function argument ,
* or file is used . Deprecated code may be removed from a later version .
*
* It is strongly recommended that plugin and theme authors use WP_DEBUG for their
* development environments .
*
* When WP_DEBUG_DISPLAY is true , WordPress will force errors to be displayed .
* WP_DEBUG_DISPLAY defaults to true . Defining it as false prevents WordPress from
* changing the global configuration setting . ( Defining WP_DEBUG_DISPLAY as false
* will never force errors to be hidden . )
*
* When WP_DEBUG_LOG is true , errors will be logged to wp - content / debug . log .
* WP_DEBUG_LOG defaults to false .
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*
* @ access private
* @ since 3.0 . 0
*/
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function wp_debug_mode () {
if ( WP_DEBUG ) {
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if ( defined ( 'E_DEPRECATED' ) )
error_reporting ( E_ALL & ~ E_DEPRECATED & ~ E_STRICT );
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else
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error_reporting ( E_ALL );
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if ( WP_DEBUG_DISPLAY )
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ini_set ( 'display_errors' , 1 );
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if ( WP_DEBUG_LOG ) {
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ini_set ( 'log_errors' , 1 );
ini_set ( 'error_log' , WP_CONTENT_DIR . '/debug.log' );
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}
} else {
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if ( defined ( 'E_RECOVERABLE_ERROR' ) )
error_reporting ( E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
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else
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error_reporting ( E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING );
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}
}
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/**
* Sets the location of the language directory .
*
* To set directory manually , define < code > WP_LANG_DIR </ code > in wp - config . php .
*
* First looks for language folder in WP_CONTENT_DIR and uses that folder if it
* exists . Or it uses the " languages " folder in WPINC .
*
* The WP_LANG_DIR constant was introduced in 2.1 . 0.
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_set_lang_dir () {
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if ( ! defined ( 'WP_LANG_DIR' ) ) {
if ( file_exists ( WP_CONTENT_DIR . '/languages' ) && @ is_dir ( WP_CONTENT_DIR . '/languages' ) ) {
define ( 'WP_LANG_DIR' , WP_CONTENT_DIR . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
if ( ! defined ( 'LANGDIR' ) ) {
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// Old static relative path maintained for limited backwards compatibility - won't work in some cases
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define ( 'LANGDIR' , 'wp-content/languages' );
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}
} else {
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define ( 'WP_LANG_DIR' , ABSPATH . WPINC . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
if ( ! defined ( 'LANGDIR' ) ) {
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// Old relative path maintained for backwards compatibility
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define ( 'LANGDIR' , WPINC . '/languages' );
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}
}
}
}
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/**
* Sets the database table prefix and the format specifiers for database table columns .
*
* Columns not listed here default to % s .
*
* @ see wpdb :: $field_types Since 2.8 . 0
* @ see wpdb :: prepare ()
* @ see wpdb :: insert ()
* @ see wpdb :: update ()
* @ see wpdb :: set_prefix ()
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_set_wpdb_vars () {
global $wpdb , $table_prefix ;
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if ( ! empty ( $wpdb -> error ) )
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dead_db ();
$wpdb -> field_types = array ( 'post_author' => '%d' , 'post_parent' => '%d' , 'menu_order' => '%d' , 'term_id' => '%d' , 'term_group' => '%d' , 'term_taxonomy_id' => '%d' ,
'parent' => '%d' , 'count' => '%d' , 'object_id' => '%d' , 'term_order' => '%d' , 'ID' => '%d' , 'commment_ID' => '%d' , 'comment_post_ID' => '%d' , 'comment_parent' => '%d' ,
'user_id' => '%d' , 'link_id' => '%d' , 'link_owner' => '%d' , 'link_rating' => '%d' , 'option_id' => '%d' , 'blog_id' => '%d' , 'meta_id' => '%d' , 'post_id' => '%d' ,
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'user_status' => '%d' , 'umeta_id' => '%d' , 'comment_karma' => '%d' , 'comment_count' => '%d' ,
// multisite:
'active' => '%d' , 'cat_id' => '%d' , 'deleted' => '%d' , 'lang_id' => '%d' , 'mature' => '%d' , 'public' => '%d' , 'site_id' => '%d' , 'spam' => '%d' ,
);
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$prefix = $wpdb -> set_prefix ( $table_prefix );
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if ( is_wp_error ( $prefix ) )
wp_die ( /*WP_I18N_BAD_PREFIX*/ '<strong>ERROR</strong>: <code>$table_prefix</code> in <code>wp-config.php</code> can only contain numbers, letters, and underscores.' /*/WP_I18N_BAD_PREFIX*/ );
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}
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/**
* Starts the WordPress object cache .
*
* If an object - cache . php file exists in the wp - content directory ,
* it uses that drop - in as an external object cache .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_start_object_cache () {
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$first_init = false ;
if ( ! function_exists ( 'wp_cache_init' ) ) {
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global $_wp_using_ext_object_cache ;
if ( file_exists ( WP_CONTENT_DIR . '/object-cache.php' ) ) {
require_once ( WP_CONTENT_DIR . '/object-cache.php' );
$_wp_using_ext_object_cache = true ;
} else {
require_once ( ABSPATH . WPINC . '/cache.php' );
$_wp_using_ext_object_cache = false ;
}
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$first_init = true ;
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}
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// If cache supports reset, reset instead of init if already initialized.
// Reset signals to the cache that global IDs have changed and it may need to update keys
// and cleanup caches.
if ( ! $first_init && function_exists ( 'wp_cache_reset' ) )
wp_cache_reset ();
else
wp_cache_init ();
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if ( function_exists ( 'wp_cache_add_global_groups' ) ) {
wp_cache_add_global_groups ( array ( 'users' , 'userlogins' , 'usermeta' , 'site-transient' , 'site-options' , 'site-lookup' , 'blog-lookup' , 'blog-details' , 'rss' ) );
wp_cache_add_non_persistent_groups ( array ( 'comment' , 'counts' , 'plugins' ) );
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}
}
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/**
* Redirects to the installer if WordPress is not installed .
*
* Dies with an error message when multisite is enabled .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_not_installed () {
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if ( is_multisite () ) {
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if ( ! is_blog_installed () && ! defined ( 'WP_INSTALLING' ) )
wp_die ( __ ( 'The blog you have requested is not installed properly. Please contact the system administrator.' ) );
} elseif ( ! is_blog_installed () && ( strpos ( $_SERVER [ 'PHP_SELF' ], 'install.php' ) === false && ! defined ( 'WP_INSTALLING' ) ) ) {
if ( defined ( 'WP_SITEURL' ) )
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$link = WP_SITEURL . '/wp-admin/install.php' ;
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elseif ( strpos ( $_SERVER [ 'PHP_SELF' ], 'wp-admin' ) !== false )
$link = preg_replace ( '|/wp-admin/?.*?$|' , '/' , $_SERVER [ 'PHP_SELF' ] ) . 'wp-admin/install.php' ;
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else
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$link = preg_replace ( '|/[^/]+?$|' , '/' , $_SERVER [ 'PHP_SELF' ] ) . 'wp-admin/install.php' ;
require_once ( ABSPATH . WPINC . '/kses.php' );
require_once ( ABSPATH . WPINC . '/pluggable.php' );
require_once ( ABSPATH . WPINC . '/formatting.php' );
wp_redirect ( $link );
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die ();
}
}
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/**
* Returns array of must - use plugin files to be included in global scope .
*
* The default directory is wp - content / mu - plugins . To change the default directory
* manually , define < code > WPMU_PLUGIN_DIR </ code > and < code > WPMU_PLUGIN_URL </ code >
* in wp - config . php .
*
* @ access private
* @ since 3.0 . 0
* @ return array Files to include
*/
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function wp_get_mu_plugins () {
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$mu_plugins = array ();
if ( ! is_dir ( WPMU_PLUGIN_DIR ) )
return $mu_plugins ;
if ( ! $dh = opendir ( WPMU_PLUGIN_DIR ) )
return $mu_plugins ;
while ( ( $plugin = readdir ( $dh ) ) !== false ) {
if ( substr ( $plugin , - 4 ) == '.php' )
$mu_plugins [] = WPMU_PLUGIN_DIR . '/' . $plugin ;
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}
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closedir ( $dh );
sort ( $mu_plugins );
return $mu_plugins ;
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}
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/**
* Returns array of plugin files to be included in global scope .
*
* The default directory is wp - content / plugins . To change the default directory
* manually , define < code > WP_PLUGIN_DIR </ code > and < code > WP_PLUGIN_URL </ code >
* in wp - config . php .
*
* @ access private
* @ since 3.0 . 0
* @ return array Files to include
*/
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function wp_get_active_and_valid_plugins () {
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$plugins = array ();
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$active_plugins = ( array ) get_option ( 'active_plugins' , array () );
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// Get active network plugins
if ( is_multisite () ) {
$active_sitewide_plugins = ( array ) get_site_option ( 'active_sitewide_plugins' , array () );
if ( ! empty ( $active_sitewide_plugins ) ) {
$active_plugins = array_merge ( $active_plugins , array_keys ( $active_sitewide_plugins ) );
sort ( $active_plugins );
}
}
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// Check for hacks file if the option is enabled
if ( get_option ( 'hack_file' ) && file_exists ( ABSPATH . 'my-hacks.php' ) ) {
_deprecated_file ( 'my-hacks.php' , '1.5' );
array_unshift ( $plugins , ABSPATH . 'my-hacks.php' );
}
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if ( empty ( $active_plugins ) || defined ( 'WP_INSTALLING' ) )
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return $plugins ;
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foreach ( $active_plugins as $plugin ) {
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if ( ! validate_file ( $plugin ) // $plugin must validate as file
&& '.php' == substr ( $plugin , - 4 ) // $plugin must end with '.php'
&& file_exists ( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist
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)
$plugins [] = WP_PLUGIN_DIR . '/' . $plugin ;
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}
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return $plugins ;
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}
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/**
* Sets internal encoding using mb_internal_encoding () .
*
* In most cases the default internal encoding is latin1 , which is of no use ,
* since we want to use the mb_ functions for utf - 8 strings .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_set_internal_encoding () {
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if ( function_exists ( 'mb_internal_encoding' ) ) {
if ( !@ mb_internal_encoding ( get_option ( 'blog_charset' ) ) )
mb_internal_encoding ( 'UTF-8' );
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}
}
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/**
* Add magic quotes to $_GET , $_POST , $_COOKIE , and $_SERVER .
*
* Also forces $_REQUEST to be $_GET + $_POST . If $_SERVER , $_COOKIE ,
* or $_ENV are needed , use those superglobals directly .
*
* @ access private
* @ since 3.0 . 0
*/
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function wp_magic_quotes () {
// If already slashed, strip.
if ( get_magic_quotes_gpc () ) {
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$_GET = stripslashes_deep ( $_GET );
$_POST = stripslashes_deep ( $_POST );
$_COOKIE = stripslashes_deep ( $_COOKIE );
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}
// Escape with wpdb.
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$_GET = add_magic_quotes ( $_GET );
$_POST = add_magic_quotes ( $_POST );
$_COOKIE = add_magic_quotes ( $_COOKIE );
$_SERVER = add_magic_quotes ( $_SERVER );
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// Force REQUEST to be GET + POST.
$_REQUEST = array_merge ( $_GET , $_POST );
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}
/**
* Runs just before PHP shuts down execution .
*
* @ access private
* @ since 1.2 . 0
*/
function shutdown_action_hook () {
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do_action ( 'shutdown' );
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wp_cache_close ();
}
/**
* Copy an object .
*
* Returns a cloned copy of an object .
*
* @ since 2.7 . 0
*
* @ param object $object The object to clone
* @ return object The cloned object
*/
function wp_clone ( $object ) {
static $can_clone ;
if ( ! isset ( $can_clone ) ) {
$can_clone = version_compare ( phpversion (), '5.0' , '>=' );
}
return $can_clone ? clone ( $object ) : $object ;
}
/**
* Whether the current request is in WordPress admin Panel
*
* Does not inform on whether the user is an admin ! Use capability checks to
* tell if the user should be accessing a section or not .
*
* @ since 1.5 . 1
*
* @ return bool True if inside WordPress administration pages .
*/
function is_admin () {
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if ( defined ( 'WP_ADMIN' ) )
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return WP_ADMIN ;
return false ;
}
/**
* Whether Multisite support is enabled
*
* @ since 3.0
*
* @ return bool True if multisite is enabled , false otherwise .
*/
function is_multisite () {
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if ( ( defined ( 'MULTISITE' ) && MULTISITE ) || defined ( 'VHOST' ) || defined ( 'SUNRISE' ) )
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return true ;
return false ;
}
?>