v_result; } // ----- Open the zip file if (($v_result=$this->privOpenFd('rb')) != 1) { // ----- Return return $v_result; } // ----- Read the central directory informations $v_central_dir = array(); if (($v_result = $this->privReadEndCentralDir($v_central_dir)) != 1) { $this->privCloseFd(); return $v_result; } // ----- Go to beginning of File @rewind($this->zip_fd); // ----- Open the archive_to_add file if (($v_result=$p_archive_to_add->privOpenFd('rb')) != 1) { $this->privCloseFd(); // ----- Return return $v_result; } // ----- Read the central directory informations $v_central_dir_to_add = array(); if (($v_result = $p_archive_to_add->privReadEndCentralDir($v_central_dir_to_add)) != 1) { $this->privCloseFd(); $p_archive_to_add->privCloseFd(); return $v_result; } // ----- Go to beginning of File @rewind($p_archive_to_add->zip_fd); // ----- Creates a temporay file $v_zip_temp_name = PCLZIP_TEMPORARY_DIR.uniqid('pclzip-').'.tmp'; // ----- Open the temporary file in write mode if (($v_zip_temp_fd = @fopen($v_zip_temp_name, 'wb')) == 0) { $this->privCloseFd(); $p_archive_to_add->privCloseFd(); PclZip::privErrorLog(PCLZIP_ERR_READ_OPEN_FAIL, 'Unable to open temporary file \''.$v_zip_temp_name.'\' in binary write mode'); // ----- Return return PclZip::errorCode(); } // ----- Copy the files from the archive to the temporary file // TBC : Here I should better append the file and go back to erase the central dir $v_size = $v_central_dir['offset']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = fread($this->zip_fd, $v_read_size); @fwrite($v_zip_temp_fd, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Copy the files from the archive_to_add into the temporary file $v_size = $v_central_dir_to_add['offset']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = fread($p_archive_to_add->zip_fd, $v_read_size); @fwrite($v_zip_temp_fd, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Store the offset of the central dir $v_offset = @ftell($v_zip_temp_fd); // ----- Copy the block of file headers from the old archive $v_size = $v_central_dir['size']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @fread($this->zip_fd, $v_read_size); @fwrite($v_zip_temp_fd, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Copy the block of file headers from the archive_to_add $v_size = $v_central_dir_to_add['size']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @fread($p_archive_to_add->zip_fd, $v_read_size); @fwrite($v_zip_temp_fd, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Merge the file comments $v_comment = $v_central_dir['comment'].' '.$v_central_dir_to_add['comment']; // ----- Calculate the size of the (new) central header $v_size = @ftell($v_zip_temp_fd)-$v_offset; // ----- Swap the file descriptor // Here is a trick : I swap the temporary fd with the zip fd, in order to use // the following methods on the temporary fil and not the real archive fd $v_swap = $this->zip_fd; $this->zip_fd = $v_zip_temp_fd; $v_zip_temp_fd = $v_swap; // ----- Create the central dir footer if (($v_result = $this->privWriteCentralHeader($v_central_dir['entries']+$v_central_dir_to_add['entries'], $v_size, $v_offset, $v_comment)) != 1) { $this->privCloseFd(); $p_archive_to_add->privCloseFd(); @fclose($v_zip_temp_fd); $this->zip_fd = null; // ----- Reset the file list unset($v_header_list); // ----- Return return $v_result; } // ----- Swap back the file descriptor $v_swap = $this->zip_fd; $this->zip_fd = $v_zip_temp_fd; $v_zip_temp_fd = $v_swap; // ----- Close $this->privCloseFd(); $p_archive_to_add->privCloseFd(); // ----- Close the temporary file @fclose($v_zip_temp_fd); // ----- Delete the zip file // TBC : I should test the result ... @unlink($this->zipname); // ----- Rename the temporary file // TBC : I should test the result ... //@rename($v_zip_temp_name, $this->zipname); PclZipUtilRename($v_zip_temp_name, $this->zipname); // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : privDuplicate() // Description : // Parameters : // Return Values : // -------------------------------------------------------------------------------- function privDuplicate($p_archive_filename) { $v_result=1; // ----- Look if the $p_archive_filename exists if (!is_file($p_archive_filename)) { // ----- Nothing to duplicate, so duplicate is a success. $v_result = 1; // ----- Return return $v_result; } // ----- Open the zip file if (($v_result=$this->privOpenFd('wb')) != 1) { // ----- Return return $v_result; } // ----- Open the temporary file in write mode if (($v_zip_temp_fd = @fopen($p_archive_filename, 'rb')) == 0) { $this->privCloseFd(); PclZip::privErrorLog(PCLZIP_ERR_READ_OPEN_FAIL, 'Unable to open archive file \''.$p_archive_filename.'\' in binary write mode'); // ----- Return return PclZip::errorCode(); } // ----- Copy the files from the archive to the temporary file // TBC : Here I should better append the file and go back to erase the central dir $v_size = filesize($p_archive_filename); while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = fread($v_zip_temp_fd, $v_read_size); @fwrite($this->zip_fd, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Close $this->privCloseFd(); // ----- Close the temporary file @fclose($v_zip_temp_fd); // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : privErrorLog() // Description : // Parameters : // -------------------------------------------------------------------------------- function privErrorLog($p_error_code=0, $p_error_string='') { if (PCLZIP_ERROR_EXTERNAL == 1) { PclError($p_error_code, $p_error_string); } else { $this->error_code = $p_error_code; $this->error_string = $p_error_string; } } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : privErrorReset() // Description : // Parameters : // -------------------------------------------------------------------------------- function privErrorReset() { if (PCLZIP_ERROR_EXTERNAL == 1) { PclErrorReset(); } else { $this->error_code = 0; $this->error_string = ''; } } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : privDisableMagicQuotes() // Description : // Parameters : // Return Values : // -------------------------------------------------------------------------------- function privDisableMagicQuotes() { $v_result=1; // ----- Look if function exists if ( (!function_exists("get_magic_quotes_runtime")) || (!function_exists("set_magic_quotes_runtime"))) { return $v_result; } // ----- Look if already done if ($this->magic_quotes_status != -1) { return $v_result; } // ----- Get and memorize the magic_quote value $this->magic_quotes_status = @get_magic_quotes_runtime(); // ----- Disable magic_quotes if ($this->magic_quotes_status == 1) { @set_magic_quotes_runtime(0); } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : privSwapBackMagicQuotes() // Description : // Parameters : // Return Values : // -------------------------------------------------------------------------------- function privSwapBackMagicQuotes() { $v_result=1; // ----- Look if function exists if ( (!function_exists("get_magic_quotes_runtime")) || (!function_exists("set_magic_quotes_runtime"))) { return $v_result; } // ----- Look if something to do if ($this->magic_quotes_status != -1) { return $v_result; } // ----- Swap back magic_quotes if ($this->magic_quotes_status == 1) { @set_magic_quotes_runtime($this->magic_quotes_status); } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- } // End of class // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilPathReduction() // Description : // Parameters : // Return Values : // -------------------------------------------------------------------------------- function PclZipUtilPathReduction($p_dir) { $v_result = ""; // ----- Look for not empty path if ($p_dir != "") { // ----- Explode path by directory names $v_list = explode("/", $p_dir); // ----- Study directories from last to first $v_skip = 0; for ($i=sizeof($v_list)-1; $i>=0; $i--) { // ----- Look for current path if ($v_list[$i] == ".") { // ----- Ignore this directory // Should be the first $i=0, but no check is done } else if ($v_list[$i] == "..") { $v_skip++; } else if ($v_list[$i] == "") { // ----- First '/' i.e. root slash if ($i == 0) { $v_result = "/".$v_result; if ($v_skip > 0) { // ----- It is an invalid path, so the path is not modified // TBC $v_result = $p_dir; $v_skip = 0; } } // ----- Last '/' i.e. indicates a directory else if ($i == (sizeof($v_list)-1)) { $v_result = $v_list[$i]; } // ----- Double '/' inside the path else { // ----- Ignore only the double '//' in path, // but not the first and last '/' } } else { // ----- Look for item to skip if ($v_skip > 0) { $v_skip--; } else { $v_result = $v_list[$i].($i!=(sizeof($v_list)-1)?"/".$v_result:""); } } } // ----- Look for skip if ($v_skip > 0) { while ($v_skip > 0) { $v_result = '../'.$v_result; $v_skip--; } } } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilPathInclusion() // Description : // This function indicates if the path $p_path is under the $p_dir tree. Or, // said in an other way, if the file or sub-dir $p_path is inside the dir // $p_dir. // The function indicates also if the path is exactly the same as the dir. // This function supports path with duplicated '/' like '//', but does not // support '.' or '..' statements. // Parameters : // Return Values : // 0 if $p_path is not inside directory $p_dir // 1 if $p_path is inside directory $p_dir // 2 if $p_path is exactly the same as $p_dir // -------------------------------------------------------------------------------- function PclZipUtilPathInclusion($p_dir, $p_path) { $v_result = 1; // ----- Look for path beginning by ./ if ( ($p_dir == '.') || ((strlen($p_dir) >=2) && (substr($p_dir, 0, 2) == './'))) { $p_dir = PclZipUtilTranslateWinPath(getcwd(), FALSE).'/'.substr($p_dir, 1); } if ( ($p_path == '.') || ((strlen($p_path) >=2) && (substr($p_path, 0, 2) == './'))) { $p_path = PclZipUtilTranslateWinPath(getcwd(), FALSE).'/'.substr($p_path, 1); } // ----- Explode dir and path by directory separator $v_list_dir = explode("/", $p_dir); $v_list_dir_size = sizeof($v_list_dir); $v_list_path = explode("/", $p_path); $v_list_path_size = sizeof($v_list_path); // ----- Study directories paths $i = 0; $j = 0; while (($i < $v_list_dir_size) && ($j < $v_list_path_size) && ($v_result)) { // ----- Look for empty dir (path reduction) if ($v_list_dir[$i] == '') { $i++; continue; } if ($v_list_path[$j] == '') { $j++; continue; } // ----- Compare the items if (($v_list_dir[$i] != $v_list_path[$j]) && ($v_list_dir[$i] != '') && ( $v_list_path[$j] != '')) { $v_result = 0; } // ----- Next items $i++; $j++; } // ----- Look if everything seems to be the same if ($v_result) { // ----- Skip all the empty items while (($j < $v_list_path_size) && ($v_list_path[$j] == '')) $j++; while (($i < $v_list_dir_size) && ($v_list_dir[$i] == '')) $i++; if (($i >= $v_list_dir_size) && ($j >= $v_list_path_size)) { // ----- There are exactly the same $v_result = 2; } else if ($i < $v_list_dir_size) { // ----- The path is shorter than the dir $v_result = 0; } } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilCopyBlock() // Description : // Parameters : // $p_mode : read/write compression mode // 0 : src & dest normal // 1 : src gzip, dest normal // 2 : src normal, dest gzip // 3 : src & dest gzip // Return Values : // -------------------------------------------------------------------------------- function PclZipUtilCopyBlock($p_src, $p_dest, $p_size, $p_mode=0) { $v_result = 1; if ($p_mode==0) { while ($p_size != 0) { $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @fread($p_src, $v_read_size); @fwrite($p_dest, $v_buffer, $v_read_size); $p_size -= $v_read_size; } } else if ($p_mode==1) { while ($p_size != 0) { $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @gzread($p_src, $v_read_size); @fwrite($p_dest, $v_buffer, $v_read_size); $p_size -= $v_read_size; } } else if ($p_mode==2) { while ($p_size != 0) { $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @fread($p_src, $v_read_size); @gzwrite($p_dest, $v_buffer, $v_read_size); $p_size -= $v_read_size; } } else if ($p_mode==3) { while ($p_size != 0) { $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @gzread($p_src, $v_read_size); @gzwrite($p_dest, $v_buffer, $v_read_size); $p_size -= $v_read_size; } } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilRename() // Description : // This function tries to do a simple rename() function. If it fails, it // tries to copy the $p_src file in a new $p_dest file and then unlink the // first one. // Parameters : // $p_src : Old filename // $p_dest : New filename // Return Values : // 1 on success, 0 on failure. // -------------------------------------------------------------------------------- function PclZipUtilRename($p_src, $p_dest) { $v_result = 1; // ----- Try to rename the files if (!@rename($p_src, $p_dest)) { // ----- Try to copy & unlink the src if (!@copy($p_src, $p_dest)) { $v_result = 0; } else if (!@unlink($p_src)) { $v_result = 0; } } // ----- Return return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilOptionText() // Description : // Translate option value in text. Mainly for debug purpose. // Parameters : // $p_option : the option value. // Return Values : // The option text value. // -------------------------------------------------------------------------------- function PclZipUtilOptionText($p_option) { $v_list = get_defined_constants(); for (reset($v_list); $v_key = key($v_list); next($v_list)) { $v_prefix = substr($v_key, 0, 10); if (( ($v_prefix == 'PCLZIP_OPT') || ($v_prefix == 'PCLZIP_CB_') || ($v_prefix == 'PCLZIP_ATT')) && ($v_list[$v_key] == $p_option)) { return $v_key; } } $v_result = 'Unknown'; return $v_result; } // -------------------------------------------------------------------------------- // -------------------------------------------------------------------------------- // Function : PclZipUtilTranslateWinPath() // Description : // Translate windows path by replacing '\' by '/' and optionally removing // drive letter. // Parameters : // $p_path : path to translate. // $p_remove_disk_letter : true | false // Return Values : // The path translated. // -------------------------------------------------------------------------------- function PclZipUtilTranslateWinPath($p_path, $p_remove_disk_letter=true) { if (stristr(php_uname(), 'windows')) { // ----- Look for potential disk letter if (($p_remove_disk_letter) && (($v_position = strpos($p_path, ':')) != false)) { $p_path = substr($p_path, $v_position+1); } // ----- Change potential windows directory separator if ((strpos($p_path, '\\') > 0) || (substr($p_path, 0,1) == '\\')) { $p_path = strtr($p_path, '\\', '/'); } } return $p_path; } // -------------------------------------------------------------------------------- ?> where_format = null) { if ( !is_array( $where ) ) return false; $formats = $format = (array) $format; $bits = $wheres = array(); foreach ( (array) array_keys($data) as $field ) { if ( !empty($format) ) $form = ( $form = array_shift($formats) ) ? $form : $format[0]; elseif ( isset($this->field_types[$field]) ) $form = $this->field_types[$field]; else $form = '%s'; $bits[] = "`$field` = {$form}"; } $where_formats = $where_format = (array) $where_format; foreach ( (array) array_keys($where) as $field ) { if ( !empty($where_format) ) $form = ( $form = array_shift($where_formats) ) ? $form : $where_format[0]; elseif ( isset($this->field_types[$field]) ) $form = $this->field_types[$field]; else $form = '%s'; $wheres[] = "`$field` = {$form}"; } $sql = "UPDATE `$table` SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ); return $this->query( $this->prepare( $sql, array_merge(array_values($data), array_values($where))) ); } /** * Retrieve one variable from the database. * * Executes a SQL query and returns the value from the SQL result. * If the SQL result contains more than one column and/or more than one row, this function returns the value in the column and row specified. * If $query is null, this function returns the value in the specified column and row from the previous SQL result. * * @since 0.71 * * @param string|null $query SQL query. If null, use the result from the previous query. * @param int $x (optional) Column of value to return. Indexed from 0. * @param int $y (optional) Row of value to return. Indexed from 0. * @return string Database query result */ function get_var($query=null, $x = 0, $y = 0) { $this->func_call = "\$db->get_var(\"$query\",$x,$y)"; if ( $query ) $this->query($query); // Extract var out of cached results based x,y vals if ( !empty( $this->last_result[$y] ) ) { $values = array_values(get_object_vars($this->last_result[$y])); } // If there is a value return it else return null return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null; } /** * Retrieve one row from the database. * * Executes a SQL query and returns the row from the SQL result. * * @since 0.71 * * @param string|null $query SQL query. * @param string $output (optional) one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...), a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively. * @param int $y (optional) Row to return. Indexed from 0. * @return mixed Database query result in format specifed by $output */ function get_row($query = null, $output = OBJECT, $y = 0) { $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; if ( $query ) $this->query($query); else return null; if ( !isset($this->last_result[$y]) ) return null; if ( $output == OBJECT ) { return $this->last_result[$y] ? $this->last_result[$y] : null; } elseif ( $output == ARRAY_A ) { return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null; } elseif ( $output == ARRAY_N ) { return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null; } else { $this->print_error(/*WP_I18N_DB_GETROW_ERROR*/' $db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N'/*/WP_I18N_DB_GETROW_ERROR*/); } } /** * Retrieve one column from the database. * * Executes a SQL query and returns the column from the SQL result. * If the SQL result contains more than one column, this function returns the column specified. * If $query is null, this function returns the specified column from the previous SQL result. * * @since 0.71 * * @param string|null $query SQL query. If null, use the result from the previous query. * @param int $x Column to return. Indexed from 0. * @return array Database query result. Array indexed from 0 by SQL result row number. */ function get_col($query = null , $x = 0) { if ( $query ) $this->query($query); $new_array = array(); // Extract the column values for ( $i=0; $i < count($this->last_result); $i++ ) { $new_array[$i] = $this->get_var(null, $x, $i); } return $new_array; } /** * Retrieve an entire SQL result set from the database (i.e., many rows) * * Executes a SQL query and returns the entire SQL result. * * @since 0.71 * * @param string $query SQL query. * @param string $output (optional) ane of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded. * @return mixed Database query results */ function get_results($query = null, $output = OBJECT) { $this->func_call = "\$db->get_results(\"$query\", $output)"; if ( $query ) $this->query($query); else return null; if ( $output == OBJECT ) { // Return an integer-keyed array of row objects return $this->last_result; } elseif ( $output == OBJECT_K ) { // Return an array of row objects with keys from column 1 // (Duplicates are discarded) foreach ( $this->last_result as $row ) { $key = array_shift( get_object_vars( $row ) ); if ( !isset( $new_array[ $key ] ) ) $new_array[ $key ] = $row; } return $new_array; } elseif ( $output == ARRAY_A || $output == ARRAY_N ) { // Return an integer-keyed array of... if ( $this->last_result ) { $i = 0; foreach( (array) $this->last_result as $row ) { if ( $output == ARRAY_N ) { // ...integer-keyed row arrays $new_array[$i] = array_values( get_object_vars( $row ) ); } else { // ...column name-keyed row arrays $new_array[$i] = get_object_vars( $row ); } ++$i; } return $new_array; } } } /** * Retrieve column metadata from the last query. * * @since 0.71 * * @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill * @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type * @return mixed Column Results */ function get_col_info($info_type = 'name', $col_offset = -1) { if ( $this->col_info ) { if ( $col_offset == -1 ) { $i = 0; foreach( (array) $this->col_info as $col ) { $new_array[$i] = $col->{$info_type}; $i++; } return $new_array; } else { return $this->col_info[$col_offset]->{$info_type}; } } } /** * Starts the timer, for debugging purposes. * * @since 1.5.0 * * @return true */ function timer_start() { $mtime = microtime(); $mtime = explode(' ', $mtime); $this->time_start = $mtime[1] + $mtime[0]; return true; } /** * Stops the debugging timer. * * @since 1.5.0 * * @return int Total time spent on the query, in milliseconds */ function timer_stop() { $mtime = microtime(); $mtime = explode(' ', $mtime); $time_end = $mtime[1] + $mtime[0]; $time_total = $time_end - $this->time_start; return $time_total; } /** * Wraps errors in a nice header and footer and dies. * * Will not die if wpdb::$show_errors is true * * @since 1.5.0 * * @param string $message * @return false|void */ function bail($message) { if ( !$this->show_errors ) { if ( class_exists('WP_Error') ) $this->error = new WP_Error('500', $message); else $this->error = $message; return false; } wp_die($message); } /** * Whether or not MySQL database is at least the required minimum version. * * @since 2.5.0 * @uses $wp_version * * @return WP_Error */ function check_database_version() { global $wp_version; // Make sure the server has MySQL 4.0 if ( version_compare($this->db_version(), '4.0.0', '<') ) return new WP_Error('database_version',sprintf(__('ERROR: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version)); } /** * Whether of not the database supports collation. * * Called when WordPress is generating the table scheme. * * @since 2.5.0 * * @return bool True if collation is supported, false if version does not */ function supports_collation() { return $this->has_cap( 'collation' ); } /** * Generic function to determine if a database supports a particular feature * @param string $db_cap the feature * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource. * @return bool */ function has_cap( $db_cap ) { $version = $this->db_version(); switch ( strtolower( $db_cap ) ) : case 'collation' : // @since 2.5.0 case 'group_concat' : // @since 2.7 case 'subqueries' : // @since 2.7 return version_compare($version, '4.1', '>='); break; endswitch; return false; } /** * Retrieve the name of the function that called wpdb. * * Requires PHP 4.3 and searches up the list of functions until it reaches * the one that would most logically had called this method. * * @since 2.5.0 * * @return string The name of the calling function */ function get_caller() { // requires PHP 4.3+ if ( !is_callable('debug_backtrace') ) return ''; $bt = debug_backtrace(); $caller = array(); $bt = array_reverse( $bt ); foreach ( (array) $bt as $call ) { if ( @$call['class'] == __CLASS__ ) continue; $function = $call['function']; if ( isset( $call['class'] ) ) $function = $call['class'] . "->$function"; $caller[] = $function; } $caller = join( ', ', $caller ); return $caller; } /** * The database version number * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource. * @return false|string false on failure, version number on success */ function db_version() { return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $this->dbh )); } } if ( ! isset($wpdb) ) { /** * WordPress Database Object, if it isn't set already in wp-content/db.php * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database * @since 0.71 */ $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); } ?>
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