PHP OCIColumnSize函数代码示例

 /**
  * Returns information about a table or a result set
  *
  * NOTE: only supports 'table' and 'flags' if <var>$result</var>
  * is a table name.
  *
  * NOTE: flags won't contain index information.
  *
  * @param object|string  $result  DB_result object from a query or a
  *                                 string containing the name of a table.
  *                                 While this also accepts a query result
  *                                 resource identifier, this behavior is
  *                                 deprecated.
  * @param int            $mode    a valid tableInfo mode
  *
  * @return array  an associative array with the information requested.
  *                 A DB_Error object on failure.
  *
  * @see DB_common::tableInfo()
  */
 function tableInfo($result, $mode = null)
 {
     if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
         $case_func = 'strtolower';
     } else {
         $case_func = 'strval';
     }
     $res = array();
     if (is_string($result)) {
         /*
          * Probably received a table name.
          * Create a result resource identifier.
          */
         $result = strtoupper($result);
         $q_fields = 'SELECT column_name, data_type, data_length, ' . 'nullable ' . 'FROM user_tab_columns ' . "WHERE table_name='{$result}' ORDER BY column_id";
         $this->last_query = $q_fields;
         if (!($stmt = @OCIParse($this->connection, $q_fields))) {
             return $this->oci8RaiseError(DB_ERROR_NEED_MORE_DATA);
         }
         if (!@OCIExecute($stmt, OCI_DEFAULT)) {
             return $this->oci8RaiseError($stmt);
         }
         $i = 0;
         while (@OCIFetch($stmt)) {
             $res[$i] = array('table' => $case_func($result), 'name' => $case_func(@OCIResult($stmt, 1)), 'type' => @OCIResult($stmt, 2), 'len' => @OCIResult($stmt, 3), 'flags' => @OCIResult($stmt, 4) == 'N' ? 'not_null' : '');
             if ($mode & DB_TABLEINFO_ORDER) {
                 $res['order'][$res[$i]['name']] = $i;
             }
             if ($mode & DB_TABLEINFO_ORDERTABLE) {
                 $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
             }
             $i++;
         }
         if ($mode) {
             $res['num_fields'] = $i;
         }
         @OCIFreeStatement($stmt);
     } else {
         if (isset($result->result)) {
             /*
              * Probably received a result object.
              * Extract the result resource identifier.
              */
             $result = $result->result;
         }
         $res = array();
         if ($result === $this->last_stmt) {
             $count = @OCINumCols($result);
             if ($mode) {
                 $res['num_fields'] = $count;
             }
             for ($i = 0; $i < $count; $i++) {
                 $res[$i] = array('table' => '', 'name' => $case_func(@OCIColumnName($result, $i + 1)), 'type' => @OCIColumnType($result, $i + 1), 'len' => @OCIColumnSize($result, $i + 1), 'flags' => '');
                 if ($mode & DB_TABLEINFO_ORDER) {
                     $res['order'][$res[$i]['name']] = $i;
                 }
                 if ($mode & DB_TABLEINFO_ORDERTABLE) {
                     $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
                 }
             }
         } else {
             return $this->raiseError(DB_ERROR_NOT_CAPABLE);
         }
     }
     return $res;
 }

 function tableInfo($result, $mode = null)
 {
     $count = 0;
     $res = array();
     /*
      * depending on $mode, metadata returns the following values:
      *
      * - mode is false (default):
      * $res[]:
      *   [0]["table"]       table name
      *   [0]["name"]        field name
      *   [0]["type"]        field type
      *   [0]["len"]         field length
      *   [0]["nullable"]    field can be null (boolean)
      *   [0]["format"]      field precision if NUMBER
      *   [0]["default"]     field default value
      *
      * - mode is DB_TABLEINFO_ORDER
      * $res[]:
      *   ["num_fields"]     number of fields
      *   [0]["table"]       table name
      *   [0]["name"]        field name
      *   [0]["type"]        field type
      *   [0]["len"]         field length
      *   [0]["nullable"]    field can be null (boolean)
      *   [0]["format"]      field precision if NUMBER
      *   [0]["default"]     field default value
      *   ['order'][field name] index of field named "field name"
      *   The last one is used, if you have a field name, but no index.
      *   Test:  if (isset($result['order']['myfield'])) { ...
      *
      * - mode is DB_TABLEINFO_ORDERTABLE
      *    the same as above. but additionally
      *   ["ordertable"][table name][field name] index of field
      *      named "field name"
      *
      *      this is, because if you have fields from different
      *      tables with the same field name * they override each
      *      other with DB_TABLEINFO_ORDER
      *
      *      you can combine DB_TABLEINFO_ORDER and
      *      DB_TABLEINFO_ORDERTABLE with DB_TABLEINFO_ORDER |
      *      DB_TABLEINFO_ORDERTABLE * or with DB_TABLEINFO_FULL
      */
     // if $result is a string, we collect info for a table only
     if (is_string($result)) {
         $result = strtoupper($result);
         $q_fields = "select column_name, data_type, data_length, data_precision,\n                         nullable, data_default from user_tab_columns\n                         where table_name='{$result}' order by column_id";
         if (!($stmt = OCIParse($this->connection, $q_fields))) {
             return $this->oci8RaiseError();
         }
         if (!OCIExecute($stmt, OCI_DEFAULT)) {
             return $this->oci8RaiseError($stmt);
         }
         while (OCIFetch($stmt)) {
             $res[$count]['table'] = $result;
             $res[$count]['name'] = @OCIResult($stmt, 1);
             $res[$count]['type'] = @OCIResult($stmt, 2);
             $res[$count]['len'] = @OCIResult($stmt, 3);
             $res[$count]['format'] = @OCIResult($stmt, 4);
             $res[$count]['nullable'] = @OCIResult($stmt, 5) == 'Y' ? true : false;
             $res[$count]['default'] = @OCIResult($stmt, 6);
             if ($mode & DB_TABLEINFO_ORDER) {
                 $res['order'][$res[$count]['name']] = $count;
             }
             if ($mode & DB_TABLEINFO_ORDERTABLE) {
                 $res['ordertable'][$res[$count]['table']][$res[$count]['name']] = $count;
             }
             $count++;
         }
         $res['num_fields'] = $count;
         @OCIFreeStatement($stmt);
     } else {
         // else we want information about a resultset
         if ($result === $this->last_stmt) {
             $count = @OCINumCols($result);
             for ($i = 0; $i < $count; $i++) {
                 $res[$i]['name'] = @OCIColumnName($result, $i + 1);
                 $res[$i]['type'] = @OCIColumnType($result, $i + 1);
                 $res[$i]['len'] = @OCIColumnSize($result, $i + 1);
                 $q_fields = "select table_name, data_precision, nullable, data_default from user_tab_columns where column_name='" . $res[$i]['name'] . "'";
                 if (!($stmt = OCIParse($this->connection, $q_fields))) {
                     return $this->oci8RaiseError();
                 }
                 if (!OCIExecute($stmt, OCI_DEFAULT)) {
                     return $this->oci8RaiseError($stmt);
                 }
                 OCIFetch($stmt);
                 $res[$i]['table'] = OCIResult($stmt, 1);
                 $res[$i]['format'] = OCIResult($stmt, 2);
                 $res[$i]['nullable'] = OCIResult($stmt, 3) == 'Y' ? true : false;
                 $res[$i]['default'] = OCIResult($stmt, 4);
                 OCIFreeStatement($stmt);
                 if ($mode & DB_TABLEINFO_ORDER) {
                     $res['order'][$res[$i]['name']] = $i;
                 }
                 if ($mode & DB_TABLEINFO_ORDERTABLE) {
                     $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
                 }
             }
//.........这里部分代码省略.........

 /**
  * Returns information about a table or a result set
  *
  * NOTE: only supports 'table' and 'flags' if <var>$result</var>
  * is a table name.
  *
  * NOTE: flags won't contain index information.
  *
  * @param object|string  $result  MDB2_result object from a query or a
  *                                 string containing the name of a table.
  *                                 While this also accepts a query result
  *                                 resource identifier, this behavior is
  *                                 deprecated.
  * @param int            $mode    a valid tableInfo mode
  *
  * @return array  an associative array with the information requested.
  *                 A MDB2_Error object on failure.
  *
  * @see MDB2_Driver_Common::tableInfo()
  */
 function tableInfo($result, $mode = null)
 {
     if (is_string($result)) {
         return parent::tableInfo($result, $mode);
     }
     $db =& $this->getDBInstance();
     if (PEAR::isError($db)) {
         return $db;
     }
     $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;
     if (!is_resource($resource)) {
         return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, 'Could not generate result resource', __FUNCTION__);
     }
     if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
         if ($db->options['field_case'] == CASE_LOWER) {
             $case_func = 'strtolower';
         } else {
             $case_func = 'strtoupper';
         }
     } else {
         $case_func = 'strval';
     }
     $count = @OCINumCols($resource);
     $res = array();
     if ($mode) {
         $res['num_fields'] = $count;
     }
     $db->loadModule('Datatype', null, true);
     for ($i = 0; $i < $count; $i++) {
         $column = array('table' => '', 'name' => $case_func(@OCIColumnName($resource, $i + 1)), 'type' => @OCIColumnType($resource, $i + 1), 'length' => @OCIColumnSize($resource, $i + 1), 'flags' => '');
         $res[$i] = $column;
         $res[$i]['mdb2type'] = $db->datatype->mapNativeDatatype($res[$i]);
         if ($mode & MDB2_TABLEINFO_ORDER) {
             $res['order'][$res[$i]['name']] = $i;
         }
         if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
             $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
         }
     }
     return $res;
 }

 /**
  * Returns information about a table or a result set.
  *
  * NOTE: only supports 'table' and 'flags' if <var>$result</var>
  * is a table name.
  *
  * NOTE: flags won't contain index information.
  *
  * @param object|string  $result  MDB2_result object from a query or a
  *                                string containing the name of a table
  * @param int            $mode    a valid tableInfo mode
  * @return array  an associative array with the information requested
  *                or an error object if something is wrong
  * @access public
  * @internal
  * @see MDB2_Driver_Common::tableInfo()
  */
 function tableInfo($result, $mode = null)
 {
     $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
     if ($db->options['portability'] & MDB2_PORTABILITY_LOWERCASE) {
         $case_func = 'strtolower';
     } else {
         $case_func = 'strval';
     }
     if (is_string($result)) {
         /*
          * Probably received a table name.
          * Create a result resource identifier.
          */
         if (MDB2::isError($connect = $db->connect())) {
             return $connect;
         }
         $result = strtoupper($result);
         $q_fields = 'SELECT column_name, data_type, data_length, ' . 'nullable ' . 'FROM user_tab_columns ' . "WHERE table_name='{$result}' ORDER BY column_id";
         $db->last_query = $q_fields;
         if (!($stmt = @OCIParse($db->connection, $q_fields))) {
             return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA);
         }
         if (!@OCIExecute($stmt, OCI_DEFAULT)) {
             return $db->raiseError($stmt);
         }
         $i = 0;
         while (@OCIFetch($stmt)) {
             $res[$i]['table'] = $case_func($result);
             $res[$i]['name'] = $case_func(@OCIResult($stmt, 1));
             $res[$i]['type'] = @OCIResult($stmt, 2);
             $res[$i]['len'] = @OCIResult($stmt, 3);
             $res[$i]['flags'] = @OCIResult($stmt, 4) == 'N' ? 'not_null' : '';
             if ($mode & MDB2_TABLEINFO_ORDER) {
                 $res['order'][$res[$i]['name']] = $i;
             }
             if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
                 $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
             }
             $i++;
         }
         if ($mode) {
             $res['num_fields'] = $i;
         }
         @OCIFreeStatement($stmt);
     } else {
         /*
          * Probably received a result object.
          * Extract the result resource identifier.
          */
         $id = $result->getResource();
         if (empty($id)) {
             return $db->raiseError();
         }
         #            if ($result === $db->last_stmt) {
         $count = @OCINumCols($id);
         for ($i = 0; $i < $count; $i++) {
             $res[$i]['table'] = '';
             $res[$i]['name'] = $case_func(@OCIColumnName($id, $i + 1));
             $res[$i]['type'] = @OCIColumnType($id, $i + 1);
             $res[$i]['len'] = @OCIColumnSize($id, $i + 1);
             $res[$i]['flags'] = '';
             if ($mode & MDB2_TABLEINFO_ORDER) {
                 $res['order'][$res[$i]['name']] = $i;
             }
             if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
                 $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
             }
         }
         if ($mode) {
             $res['num_fields'] = $i;
         }
         #            } else {
         #                return $db->raiseError(MDB2_ERROR_NOT_CAPABLE);
         #            }
     }
     return $res;
 }

 function query($query)
 {
     $return_value = 0;
     // Flush cached values..
     $this->flush();
     // Log how the function was called
     $this->func_call = "\$db->query(\"{$query}\")";
     // Keep track of the last query for debug..
     $this->last_query = $query;
     $this->count(true, true);
     // Use core file cache function
     if ($cache = $this->get_cache($query)) {
         return $cache;
     }
     // If there is no existing database connection then try to connect
     if (!isset($this->dbh) || !$this->dbh) {
         $this->connect($this->dbuser, $this->dbpassword, $this->dbname);
     }
     // Parses the query and returns a statement..
     if (!($stmt = OCIParse($this->dbh, $query))) {
         $error = OCIError($this->dbh);
         $this->register_error($error["message"]);
         $this->show_errors ? trigger_error($error["message"], E_USER_WARNING) : null;
         return false;
     } elseif (!($this->result = OCIExecute($stmt))) {
         $error = OCIError($stmt);
         $this->register_error($error["message"]);
         $this->show_errors ? trigger_error($error["message"], E_USER_WARNING) : null;
         return false;
     }
     // If query was an insert
     $is_insert = false;
     if (preg_match('/^(insert|delete|update|create) /i', $query)) {
         $is_insert = true;
         // num afected rows
         $return_value = $this->rows_affected = @OCIRowCount($stmt);
     } else {
         // Get column information
         if ($num_cols = @OCINumCols($stmt)) {
             // Fetch the column meta data
             for ($i = 1; $i <= $num_cols; $i++) {
                 $this->col_info[$i - 1]->name = @OCIColumnName($stmt, $i);
                 $this->col_info[$i - 1]->type = @OCIColumnType($stmt, $i);
                 $this->col_info[$i - 1]->size = @OCIColumnSize($stmt, $i);
             }
         }
         // If there are any results then get them
         if ($this->num_rows = @OCIFetchStatement($stmt, $results)) {
             // Convert results into object orientated results..
             // Due to Oracle strange return structure - loop through columns
             foreach ($results as $col_title => $col_contents) {
                 $row_num = 0;
                 // then - loop through rows
                 foreach ($col_contents as $col_content) {
                     $this->last_result[$row_num]->{$col_title} = $col_content;
                     $row_num++;
                 }
             }
         }
         // num result rows
         $return_value = $this->num_rows;
     }
     // disk caching of queries
     $this->store_cache($query, $is_insert);
     // If debug ALL queries
     $this->trace || $this->debug_all ? $this->debug() : null;
     return $return_value;
 }

 function query($query)
 {
     // For reg expressions
     $query = trim($query);
     $return_value = 0;
     // Flush cached values..
     $this->flush();
     // Log how the function was called
     $this->func_call = "\$db->query(\"{$query}\")";
     // Keep track of the last query for debug..
     $this->last_query = $query;
     // Parses the query and returns a statement..
     if (!($stmt = OCIParse($this->dbh, $query))) {
         $this->print_error("Last Query", $query);
     } elseif (!($this->result = OCIExecute($stmt))) {
         $this->print_error("Last Query", $query);
     }
     $this->num_queries++;
     // If query was an insert
     if (preg_match('/^(insert|delete|update|create)\\s+/i', $query)) {
         // num afected rows
         $return_value = $this->rows_affected = OCIRowCount($stmt);
     } else {
         // Get column information
         if ($num_cols = @OCINumCols($stmt)) {
             // Fetch the column meta data
             for ($i = 1; $i <= $num_cols; $i++) {
                 $this->col_info[$i - 1]->name = OCIColumnName($stmt, $i);
                 $this->col_info[$i - 1]->type = OCIColumnType($stmt, $i);
                 $this->col_info[$i - 1]->size = OCIColumnSize($stmt, $i);
             }
         }
         // If there are any results then get them
         if ($this->num_rows = @OCIFetchStatement($stmt, $results)) {
             // Convert results into object orientated results..
             // Due to Oracle strange return structure - loop through columns
             foreach ($results as $col_title => $col_contents) {
                 $row_num = 0;
                 // then - loop through rows
                 foreach ($col_contents as $col_content) {
                     $this->last_result[$row_num]->{$col_title} = $col_content;
                     $row_num++;
                 }
             }
         }
         // num result rows
         $return_value = $this->num_rows;
     }
     // If debug ALL queries
     $this->trace || $this->debug_all ? $this->debug() : null;
     return $return_value;
 }

 /** returns type of field */
 function fieldsize($field, $stmt = FALSE)
 {
     if (!$stmt) {
         $stmt = $this->stmt;
     }
     return @OCIColumnSize($stmt, $field);
 }

 function query($query)
 {
     //去掉查询语句的前后空格
     $query = trim($query);
     $return_value = 0;
     //清空缓存..
     $this->flush();
     //记录此函数如何被调用，用于调试...
     $this->func_call = "\$db->query(\"{$query}\")";
     //跟踪最后查询语句，用于调试..
     $this->last_query = $query;
     //解析查询语句
     if (!($stmt = OCIParse($this->dbh, $query))) {
         $this->print_error();
     } elseif (!($this->result = OCIExecute($stmt))) {
         $this->print_error();
     }
     $this->num_queries++;
     //执行insert, delete, update, replace操作
     if (preg_match('/^(insert|delete|update|create)\\s+/i', $query)) {
         //获取操作所影响的记录行数
         $return_value = $this->rows_affected = OCIRowCount($stmt);
     } else {
         //获取字段信息
         if ($num_cols = @OCINumCols($stmt)) {
             for ($i = 1; $i <= $num_cols; $i++) {
                 $this->col_info[$i - 1]->name = OCIColumnName($stmt, $i);
                 $this->col_info[$i - 1]->type = OCIColumnType($stmt, $i);
                 $this->col_info[$i - 1]->size = OCIColumnSize($stmt, $i);
             }
         }
         //获取查询结果
         if ($this->num_rows = @OCIFetchStatement($stmt, $results)) {
             //将结果集转变成对象，因为oracle的返回结果比较奇怪：）
             foreach ($results as $col_title => $col_contents) {
                 $row_num = 0;
                 //循环所有的行
                 foreach ($col_contents as $col_content) {
                     $this->last_result[$row_num]->{$col_title} = $col_content;
                     $row_num++;
                 }
             }
         }
         //获取查询结果行数
         $return_value = $this->num_rows;
     }
     //是否显示所有的查询信息
     $this->debug_all ? $this->debug() : null;
     return $return_value;
 }