PHP fCore::startErrorCapture方法代码示例

 /**
  * Executes an unbuffered SQL query
  * 
  * @param  string|fStatement $statement  The statement to perform
  * @param  fUnbufferedResult $result     The result object for the query
  * @param  array             $params     The parameters for prepared statements
  * @return void
  */
 private function performUnbufferedQuery($statement, $result, $params)
 {
     fCore::startErrorCapture();
     $extra = NULL;
     if (is_object($statement)) {
         $statement->executeUnbufferedQuery($result, $params, $extra, $statement != $this->statement);
     } elseif ($this->extension == 'ibm_db2') {
         $result->setResult(db2_exec($this->connection, $statement, array('cursor' => DB2_FORWARD_ONLY)));
     } elseif ($this->extension == 'mssql') {
         $result->setResult(mssql_query($result->getSQL(), $this->connection, 20));
     } elseif ($this->extension == 'mysql') {
         $result->setResult(mysql_unbuffered_query($result->getSQL(), $this->connection));
     } elseif ($this->extension == 'mysqli') {
         $result->setResult(mysqli_query($this->connection, $result->getSQL(), MYSQLI_USE_RESULT));
     } elseif ($this->extension == 'oci8') {
         $extra = oci_parse($this->connection, $result->getSQL());
         if (oci_execute($extra, $this->inside_transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS)) {
             $result->setResult($extra);
         } else {
             $result->setResult(FALSE);
         }
     } elseif ($this->extension == 'pgsql') {
         $result->setResult(pg_query($this->connection, $result->getSQL()));
     } elseif ($this->extension == 'sqlite') {
         $result->setResult(sqlite_unbuffered_query($this->connection, $result->getSQL(), SQLITE_ASSOC, $extra));
     } elseif ($this->extension == 'sqlsrv') {
         $result->setResult(sqlsrv_query($this->connection, $result->getSQL()));
     } elseif ($this->extension == 'pdo') {
         $result->setResult($this->connection->query($result->getSQL()));
     }
     $this->statement = $statement;
     $this->handleErrors(fCore::stopErrorCapture());
     $this->checkForError($result, $extra);
 }

 /**
  * Connects to the server
  *
  * @return void
  */
 private function connect()
 {
     if ($this->connection) {
         return;
     }
     fCore::startErrorCapture(E_WARNING);
     $this->connection = fsockopen($this->secure ? 'tls://' . $this->host : $this->host, $this->port, $error_number, $error_string, $this->timeout);
     foreach (fCore::stopErrorCapture('#ssl#i') as $error) {
         throw new fConnectivityException('There was an error connecting to the server. A secure connection was requested, but was not available. Try a non-secure connection instead.');
     }
     if (!$this->connection) {
         throw new fConnectivityException('There was an error connecting to the server');
     }
     stream_set_timeout($this->connection, $this->timeout);
     if ($this->type == 'imap') {
         if (!$this->secure && extension_loaded('openssl')) {
             $response = $this->write('CAPABILITY');
             if (preg_match('#\\bstarttls\\b#i', $response[0])) {
                 $this->write('STARTTLS');
                 do {
                     if (isset($res)) {
                         sleep(0.1);
                     }
                     $res = stream_socket_enable_crypto($this->connection, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);
                 } while ($res === 0);
             }
         }
         $response = $this->write('LOGIN ' . $this->username . ' ' . $this->password);
         if (!$response || !preg_match('#^[^ ]+\\s+OK#', $response[count($response) - 1])) {
             throw new fValidationException('The username and password provided were not accepted for the %1$s server %2$s on port %3$s', strtoupper($this->type), $this->host, $this->port);
         }
         $this->write('SELECT "INBOX"');
     } elseif ($this->type == 'pop3') {
         $response = $this->read(1);
         if (isset($response[0])) {
             if ($response[0][0] == '-') {
                 throw new fConnectivityException('There was an error connecting to the POP3 server %1$s on port %2$s', $this->host, $this->port);
             }
             preg_match('#<[^@]+@[^>]+>#', $response[0], $match);
         }
         if (!$this->secure && extension_loaded('openssl')) {
             $response = $this->write('STLS', 1);
             if ($response[0][0] == '+') {
                 do {
                     if (isset($res)) {
                         sleep(0.1);
                     }
                     $res = stream_socket_enable_crypto($this->connection, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);
                 } while ($res === 0);
                 if ($res === FALSE) {
                     throw new fConnectivityException('Error establishing secure connection');
                 }
             }
         }
         $authenticated = FALSE;
         if (isset($match[0])) {
             $response = $this->write('APOP ' . $this->username . ' ' . md5($match[0] . $this->password), 1);
             if (isset($response[0]) && $response[0][0] == '+') {
                 $authenticated = TRUE;
             }
         }
         if (!$authenticated) {
             $response = $this->write('USER ' . $this->username, 1);
             if ($response[0][0] == '+') {
                 $response = $this->write('PASS ' . $this->password, 1);
                 if (isset($response[0][0]) && $response[0][0] == '+') {
                     $authenticated = TRUE;
                 }
             }
         }
         if (!$authenticated) {
             throw new fValidationException('The username and password provided were not accepted for the %1$s server %2$s on port %3$s', strtoupper($this->type), $this->host, $this->port);
         }
     }
 }

 public function testHandleErrorCapturePattern()
 {
     error_reporting(E_ALL | E_STRICT);
     ob_start();
     fCore::enableErrorHandling('html');
     fCore::startErrorCapture(E_NOTICE, '#print_r#');
     echo $print_r;
     echo $undefined_var;
     print_r();
     $errors = fCore::stopErrorCapture();
     $output = ob_get_clean();
     $this->assertEquals(1, count($errors));
     $this->assertEquals(TRUE, strlen($output) > 0);
 }

 /**
  * Removes any invalid UTF-8 characters from a string or array of strings
  * 
  * @param  array|string $value  The string or array of strings to clean
  * @return string  The cleaned string
  */
 public static function clean($value)
 {
     if (!is_array($value)) {
         if (self::$can_ignore_invalid === NULL) {
             self::$can_ignore_invalid = !in_array(strtolower(ICONV_IMPL), array('unknown', 'ibm iconv'));
         }
         fCore::startErrorCapture(E_NOTICE);
         $value = self::iconv('UTF-8', 'UTF-8' . (self::$can_ignore_invalid ? '//IGNORE' : ''), (string) $value);
         fCore::stopErrorCapture();
         return $value;
     }
     $keys = array_keys($value);
     $num_keys = sizeof($keys);
     for ($i = 0; $i < $num_keys; $i++) {
         $value[$keys[$i]] = self::clean($value[$keys[$i]]);
     }
     return $value;
 }

 /**
  * Clears the WHOLE cache of every key, use with caution!
  * 
  * xcache may require a login or password depending on your ini settings.
  * 
  * @return boolean  If the cache was successfully cleared
  */
 public function clear()
 {
     switch ($this->type) {
         case 'apc':
             return apc_clear_cache('user');
         case 'database':
             $this->data_store->query("DELETE FROM %r", $this->config['table']);
             return TRUE;
         case 'directory':
             $files = array_diff(scandir($this->config['path']), array('.', '..'));
             $success = TRUE;
             foreach ($files as $file) {
                 $success = unlink($this->config['path'] . $file) && $success;
             }
             return $success;
         case 'file':
             $this->data_store = array();
             $this->config['state'] = 'dirty';
             return TRUE;
         case 'memcache':
             return $this->data_store->flush();
         case 'redis':
             return $this->data_store->flushDB();
         case 'xcache':
             fCore::startErrorCapture();
             xcache_clear_cache(XC_TYPE_VAR, 0);
             return (bool) fCore::stopErrorCapture();
     }
 }

 /**
  * Removes any invalid UTF-8 characters from a string or array of strings
  *
  * @param  array|string $value  The string or array of strings to clean
  * @return string  The cleaned string
  */
 public static function clean($value)
 {
     if (!is_array($value)) {
         self::checkMbString();
         if (self::$mbstring_available) {
             $old_sub = ini_get('mbstring.substitute_character');
             ini_set('mbstring.substitute_character', 'none');
             $value = mb_convert_encoding($value, 'UTF-8', 'UTF-8');
             ini_set('mbstring.substitute_character', $old_sub);
             return $value;
         }
         if (self::$can_ignore_invalid === NULL) {
             self::$can_ignore_invalid = !in_array(strtolower(ICONV_IMPL), array('unknown', 'ibm iconv'));
         }
         fCore::startErrorCapture(E_NOTICE);
         $value = self::iconv('UTF-8', 'UTF-8' . (self::$can_ignore_invalid ? '//IGNORE' : ''), (string) $value);
         fCore::stopErrorCapture();
         return $value;
     }
     $keys = array_keys($value);
     $num_keys = sizeof($keys);
     for ($i = 0; $i < $num_keys; $i++) {
         $value[$keys[$i]] = self::clean($value[$keys[$i]]);
     }
     return $value;
 }

 /**
  * Opens the session for writing, is automatically called by ::clear(), ::get() and ::set()
  *
  * A `Cannot send session cache limiter` warning will be triggered if this,
  * ::add(), ::clear(), ::delete(), ::get() or ::set() is called after output
  * has been sent to the browser. To prevent such a warning, explicitly call
  * this method before generating any output.
  *
  * @param  boolean $cookie_only_session_id  If the session id should only be allowed via cookie - this is a security issue and should only be set to `FALSE` when absolutely necessary
  * @return void
  */
 public static function open($cookie_only_session_id = TRUE)
 {
     if (self::$open) {
         return;
     }
     self::$open = TRUE;
     if (self::$normal_timespan === NULL) {
         self::$normal_timespan = ini_get('session.gc_maxlifetime');
     }
     if (self::$backend && self::exists() && session_module_name() != 'user') {
         throw new fProgrammerException('A custom backend was provided by %1$s, however the session has already been started, so it can not be used', __CLASS__ . '::setBackend()');
     }
     // If the session is already open, we just piggy-back without setting options
     if (!self::exists()) {
         if ($cookie_only_session_id) {
             ini_set('session.use_cookies', 1);
             ini_set('session.use_only_cookies', 1);
         }
         // If we are using a custom backend we have to set the session handler
         if (self::$backend && session_module_name() != 'user') {
             session_set_save_handler(array('fSession', 'openCache'), array('fSession', 'closeCache'), array('fSession', 'readCache'), array('fSession', 'writeCache'), array('fSession', 'destroyCache'), array('fSession', 'gcCache'));
         }
         // https://bugs.php.net/bug.php?id=68063
         // Fix warning with Bad IDs
         fCore::startErrorCapture();
         $started = session_start();
         fCore::stopErrorCapture();
         if (!$started) {
             session_regenerate_id(TRUE);
             session_start();
         }
     }
     // If the session has existed for too long, reset it
     if (isset($_SESSION['fSession::expires']) && $_SESSION['fSession::expires'] < $_SERVER['REQUEST_TIME']) {
         $_SESSION = array();
         self::regenerateID();
     }
     if (!isset($_SESSION['fSession::type'])) {
         $_SESSION['fSession::type'] = 'normal';
     }
     // We store the expiration time for a session to allow for both normal and persistent sessions
     if ($_SESSION['fSession::type'] == 'persistent' && self::$persistent_timespan) {
         $_SESSION['fSession::expires'] = $_SERVER['REQUEST_TIME'] + self::$persistent_timespan;
     } else {
         $_SESSION['fSession::expires'] = $_SERVER['REQUEST_TIME'] + self::$normal_timespan;
     }
 }

 /**
  * Parses a search string into search terms, supports quoted phrases and removes extra punctuation
  * 
  * @internal
  * 
  * @param  string  $terms              A text string from a form input to parse into search terms
  * @param  boolean $ignore_stop_words  If stop words should be ignored, this setting will be ignored if all words are stop words
  * @return void
  */
 public static function parseSearchTerms($terms, $ignore_stop_words = FALSE)
 {
     $stop_words = array('i', 'a', 'an', 'are', 'as', 'at', 'be', 'by', 'de', 'en', 'en', 'for', 'from', 'how', 'in', 'is', 'it', 'la', 'of', 'on', 'or', 'that', 'the', 'this', 'to', 'was', 'what', 'when', 'where', 'who', 'will');
     preg_match_all('#(?:"[^"]+"|[^\\s]+)#', $terms, $matches);
     $good_terms = array();
     $ignored_terms = array();
     foreach ($matches[0] as $match) {
         // Remove phrases from quotes
         if ($match[0] == '"' && substr($match, -1)) {
             $match = substr($match, 1, -1);
             // Trim any punctuation off of the beginning and end of terms
         } else {
             if (self::$pcre_supports_unicode_character_properties === NULL) {
                 fCore::startErrorCapture();
                 preg_match('#\\pC#u', 'test');
                 self::$pcre_supports_unicode_character_properties = !(bool) fCore::stopErrorCapture();
             }
             if (self::$pcre_supports_unicode_character_properties) {
                 $match = preg_replace('#(^[\\pC\\pC\\pM\\pP\\pS\\pZ]+|[\\pC\\pC\\pM\\pP\\pS\\pZ]+$)#iDu', '', $match);
             } else {
                 // This just removes ascii non-alphanumeric characters, plus the unicode punctuation and supplemental punctuation blocks
                 $match = preg_replace('#(^[\\x21-\\x2F\\x3A-\\x40\\x5B-\\x60\\x7B-\\x7F\\x{2000}-\\x{206F}\\x{2E00}-\\x{2E7F}\\x{00A1}-\\x{00A9}\\x{00AB}-\\x{00B1}\\x{00B4}\\x{00B6}-\\x{00B8}\\x{00BB}\\x{00BF}\\x{00D7}\\x{00F7}]+|[\\x21-\\x2F\\x3A-\\x40\\x5B-\\x60\\x7B-\\x7F\\x{2000}-\\x{206F}\\x{2E00}-\\x{2E7F}\\x{00A1}-\\x{00A9}\\x{00AB}-\\x{00B1}\\x{00B4}\\x{00B6}-\\x{00B8}\\x{00BB}\\x{00BF}\\x{00D7}\\x{00F7}]+$)#iDu', '', $match);
             }
         }
         if ($ignore_stop_words && in_array(strtolower($match), $stop_words)) {
             $ignored_terms[] = $match;
             continue;
         }
         $good_terms[] = $match;
     }
     // If no terms were parsed, that means all words were stop words
     if ($ignored_terms && !$good_terms) {
         $good_terms = $ignored_terms;
     }
     return $good_terms;
 }

 /**
  * Encrypts the passed data using symmetric-key encryption
  *
  * Since this is symmetric-key cryptography, the same key is used for
  * encryption and decryption.
  * 
  * @throws fValidationException  When the $secret_key is less than 8 characters long
  *  
  * @param  string $plaintext   The content to be encrypted
  * @param  string $secret_key  The secret key to use for encryption - must be at least 8 characters
  * @return string  An encrypted and base-64 encoded result containing a Flourish fingerprint and suitable for decryption using ::symmetricKeyDecrypt()
  */
 public static function symmetricKeyEncrypt($plaintext, $secret_key)
 {
     if (strlen($secret_key) < 8) {
         throw new fValidationException('The secret key specified does not meet the minimum requirement of being at least %s characters long', 8);
     }
     self::verifySymmetricKeyEnvironment();
     // This code uses the Rijndael cipher with a 192 bit block size and a
     // 256 bit key in cipher feedback mode. Cipher feedback mode is chosen
     // because no extra padding is added, ensuring we always get the exact
     // same plaintext out of the decrypt method
     $module = mcrypt_module_open('rijndael-192', '', 'cfb', '');
     $key = substr(sha1($secret_key), 0, mcrypt_enc_get_key_size($module));
     srand();
     $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($module), MCRYPT_RAND);
     // Finish the main encryption
     mcrypt_generic_init($module, $key, $iv);
     fCore::startErrorCapture(E_WARNING);
     $ciphertext = mcrypt_generic($module, $plaintext);
     fCore::stopErrorCapture();
     // Clean up the main encryption
     mcrypt_generic_deinit($module);
     mcrypt_module_close($module);
     // Here we are generating the HMAC for the encrypted data to ensure data integrity
     $hmac = self::hashHMAC('sha1', $iv . '#' . $ciphertext, $secret_key);
     // All of the data is then encoded using base64 to prevent issues with character sets
     $encoded_iv = base64_encode($iv);
     $encoded_ciphertext = base64_encode($ciphertext);
     // Indicate in the resulting encrypted data what the encryption tool was
     return 'fCryptography::symmetric#' . $encoded_iv . '#' . $encoded_ciphertext . '#' . $hmac;
 }

 /**
  * Initiates the connection to the server
  * 
  * @return void
  */
 private function connect()
 {
     if ($this->connection) {
         return;
     }
     $fqdn = fEmail::getFQDN();
     fCore::startErrorCapture(E_WARNING);
     $host = $this->secure ? 'tls://' . $this->host : $this->host;
     $this->connection = fsockopen($host, $this->port, $error_int, $error_string, $this->timeout);
     foreach (fCore::stopErrorCapture('#ssl#i') as $error) {
         throw new fConnectivityException('There was an error connecting to the server. A secure connection was requested, but was not available. Try a non-secure connection instead.');
     }
     if (!$this->connection) {
         throw new fConnectivityException('There was an error connecting to the server');
     }
     stream_set_timeout($this->connection, $this->timeout);
     $response = $this->read('#^220 #');
     if (!$this->find($response, '#^220[ -]#')) {
         throw new fConnectivityException('Unknown SMTP welcome message, %1$s, from server %2$s on port %3$s', join("\r\n", $response), $this->host, $this->port);
     }
     // Try sending the ESMTP EHLO command, but fall back to normal SMTP HELO
     $response = $this->write('EHLO ' . $fqdn, '#^250 #m');
     if ($this->find($response, '#^500#')) {
         $response = $this->write('HELO ' . $fqdn, 1);
     }
     // If STARTTLS is available, use it
     if (!$this->secure && extension_loaded('openssl') && $this->find($response, '#^250[ -]STARTTLS#')) {
         $response = $this->write('STARTTLS', '#^220 #');
         $affirmative = $this->find($response, '#^220[ -]#');
         if ($affirmative) {
             do {
                 if (isset($res)) {
                     sleep(0.1);
                 }
                 $res = stream_socket_enable_crypto($this->connection, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);
             } while ($res === 0);
         }
         if (!$affirmative || $res === FALSE) {
             throw new fConnectivityException('Error establishing secure connection');
         }
         $response = $this->write('EHLO ' . $fqdn, '#^250 #m');
     }
     $this->max_size = 0;
     if ($match = $this->find($response, '#^250[ -]SIZE\\s+(\\d+)$#')) {
         $this->max_size = $match[0][1];
     }
     $this->pipelining = (bool) $this->find($response, '#^250[ -]PIPELINING$#');
     $auth_methods = array();
     if ($match = $this->find($response, '#^250[ -]AUTH[ =](.*)$#')) {
         $auth_methods = array_map('strtoupper', explode(' ', $match[0][1]));
     }
     if (!$auth_methods || !$this->username) {
         return;
     }
     if (in_array('DIGEST-MD5', $auth_methods)) {
         $response = $this->write('AUTH DIGEST-MD5', 1);
         $this->handleErrors($response);
         $match = $this->find($response, '#^334 (.*)$#');
         $challenge = base64_decode($match[0][1]);
         preg_match_all('#(?<=,|^)(\\w+)=("[^"]+"|[^,]+)(?=,|$)#', $challenge, $matches, PREG_SET_ORDER);
         $request_params = array();
         foreach ($matches as $_match) {
             $request_params[$_match[1]] = $_match[2][0] == '"' ? substr($_match[2], 1, -1) : $_match[2];
         }
         $missing_qop_auth = !isset($request_params['qop']) || !in_array('auth', explode(',', $request_params['qop']));
         $missing_nonce = empty($request_params['nonce']);
         if ($missing_qop_auth || $missing_nonce) {
             throw new fUnexpectedException('The SMTP server %1$s on port %2$s claims to support DIGEST-MD5, but does not seem to provide auth functionality', $this->host, $this->port);
         }
         if (!isset($request_params['realm'])) {
             $request_params['realm'] = '';
         }
         // Algorithm from http://www.ietf.org/rfc/rfc2831.txt
         $realm = $request_params['realm'];
         $nonce = $request_params['nonce'];
         $cnonce = fCryptography::randomString('32', 'hexadecimal');
         $nc = '00000001';
         $digest_uri = 'smtp/' . $this->host;
         $a1 = md5($this->username . ':' . $realm . ':' . $this->password, TRUE) . ':' . $nonce . ':' . $cnonce;
         $a2 = 'AUTHENTICATE:' . $digest_uri;
         $response = md5(md5($a1) . ':' . $nonce . ':' . $nc . ':' . $cnonce . ':auth:' . md5($a2));
         $response_params = array('charset=utf-8', 'username="' . $this->username . '"', 'realm="' . $realm . '"', 'nonce="' . $nonce . '"', 'nc=' . $nc, 'cnonce="' . $cnonce . '"', 'digest-uri="' . $digest_uri . '"', 'response=' . $response, 'qop=auth');
         $response = $this->write(base64_encode(join(',', $response_params)), 2);
     } elseif (in_array('CRAM-MD5', $auth_methods)) {
         $response = $this->write('AUTH CRAM-MD5', 1);
         $match = $this->find($response, '#^334 (.*)$#');
         $challenge = base64_decode($match[0][1]);
         $response = $this->write(base64_encode($this->username . ' ' . fCryptography::hashHMAC('md5', $challenge, $this->password)), 1);
     } elseif (in_array('LOGIN', $auth_methods)) {
         $response = $this->write('AUTH LOGIN', 1);
         $this->write(base64_encode($this->username), 1);
         $response = $this->write(base64_encode($this->password), 1);
     } elseif (in_array('PLAIN', $auth_methods)) {
         $response = $this->write('AUTH PLAIN ' . base64_encode($this->username . "" . $this->username . "" . $this->password), 1);
     }
//.........这里部分代码省略.........

 /**
  * Sets up a prepared statement
  * 
  * @internal
  * 
  * @param  fDatabase $database            The database object this result set was created from
  * @param  string    $query               The SQL statement to prepare
  * @param  array     $placeholders        The data type placeholders
  * @param  string    $untranslated_query  The original untranslated SQL, if applicable
  * @return fStatement
  */
 public function __construct($database, $query, $placeholders, $untranslated_sql)
 {
     if (!$database instanceof fDatabase) {
         throw new fProgrammerException('The database object provided does not appear to be a descendant of fDatabase');
     }
     $this->database = $database;
     $this->placeholders = $placeholders;
     $this->sql = vsprintf($query, $placeholders);
     $this->untranslated_sql = $untranslated_sql;
     $extension = $this->database->getExtension();
     if ($extension == 'pdo' && $this->database->getType() == 'mssql') {
         $extension = 'pdo_dblib';
     }
     switch ($extension) {
         // These database extensions don't have prepared statements
         case 'mssql':
         case 'mysql':
         case 'pdo_dblib':
         case 'sqlite':
             $query = vsprintf($query, $placeholders);
             break;
         case 'oci8':
             $named_placeholders = array();
             for ($i = 1; $i <= sizeof($placeholders); $i++) {
                 $named_placeholders[] = ':p' . $i;
             }
             $query = vsprintf($query, $named_placeholders);
             break;
         case 'ibm_db2':
         case 'mysqli':
         case 'pdo':
         case 'sqlsrv':
             $question_marks = array();
             if (sizeof($placeholders)) {
                 $question_marks = array_fill(0, sizeof($placeholders), '?');
             }
             $query = vsprintf($query, $question_marks);
             break;
         case 'pgsql':
             $dollar_placeholders = array();
             for ($i = 1; $i <= sizeof($placeholders); $i++) {
                 $dollar_placeholders[] = '$' . $i;
             }
             $query = vsprintf($query, $dollar_placeholders);
             break;
     }
     $connection = $this->database->getConnection();
     fCore::startErrorCapture(E_WARNING);
     switch ($extension) {
         // These database extensions don't have prepared statements
         case 'mssql':
         case 'mysql':
         case 'pdo_dblib':
         case 'sqlite':
             $statement = $query;
             break;
         case 'ibm_db2':
             $statement = db2_prepare($connection, $query, array('cursor' => DB2_FORWARD_ONLY));
             break;
         case 'mysqli':
             $statement = mysqli_prepare($connection, $query);
             break;
         case 'oci8':
             $statement = oci_parse($connection, $query);
             break;
         case 'pdo':
             $statement = $connection->prepare($query);
             break;
         case 'pgsql':
             static $statement_number = 0;
             $statement_number++;
             $this->identifier = 'fstmt' . $statement_number;
             $statement = pg_prepare($connection, $this->identifier, $query);
             break;
         case 'sqlsrv':
             $params = array();
             for ($i = 0; $i < sizeof($placeholders); $i++) {
                 if ($placeholders[$i] == '%s') {
                     $this->bound_params[$i] = array(NULL, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('UTF-8'));
                 } else {
                     $this->bound_params[$i] = array(NULL);
                 }
                 $params[$i] =& $this->bound_params[$i];
             }
             $statement = sqlsrv_prepare($connection, $query, $params);
             break;
     }
     fCore::stopErrorCapture();
     if (!$statement) {
//.........这里部分代码省略.........

 /**
  * Gets the dimensions and type of an image stored on the filesystem
  *
  * The `'type'` key will have one of the following values:
  *
  *  - `{null}` (File type is not supported)
  *  - `'jpg'`
  *  - `'gif'`
  *  - `'png'`
  *  - `'tif'`
  *
  * @throws fValidationException  When the file specified is not an image
  *
  * @param  string $image_path  The path to the image to get stats for
  * @param  string $element     The element to retrieve: `'type'`, `'width'`, `'height'`
  * @return mixed  An associative array: `'type' => {mixed}, 'width' => {integer}, 'height' => {integer}`, or the element specified
  */
 protected static function getInfo($image_path, $element = NULL)
 {
     $extension = strtolower(fFilesystem::getPathInfo($image_path, 'extension'));
     if (!in_array($extension, array('jpg', 'jpeg', 'png', 'gif', 'tif', 'tiff'))) {
         $type = self::getImageType($image_path);
         if ($type === NULL) {
             throw new fValidationException('The file specified, %s, does not appear to be an image', $image_path);
         }
     }
     fCore::startErrorCapture(E_WARNING);
     $image_info = getimagesize($image_path);
     fCore::stopErrorCapture();
     if ($image_info == FALSE) {
         throw new fValidationException('The file specified, %s, is not an image', $image_path);
     }
     $valid_elements = array('type', 'width', 'height');
     if ($element !== NULL && !in_array($element, $valid_elements)) {
         throw new fProgrammerException('The element specified, %1$s, is invalid. Must be one of: %2$s.', $element, join(', ', $valid_elements));
     }
     $types = array(IMAGETYPE_GIF => 'gif', IMAGETYPE_JPEG => 'jpg', IMAGETYPE_PNG => 'png', IMAGETYPE_TIFF_II => 'tif', IMAGETYPE_TIFF_MM => 'tif');
     $output = array();
     $output['width'] = $image_info[0];
     $output['height'] = $image_info[1];
     if (isset($types[$image_info[2]])) {
         $output['type'] = $types[$image_info[2]];
     } else {
         $output['type'] = NULL;
     }
     if ($element !== NULL) {
         return $output[$element];
     }
     return $output;
 }