adodb-mssql.inc.php

这是一个嵌入式linux系统下的命令工具包

					}
				$i += 1;
			}
			$decl = $this->qstr($decl);
			if ($this->debug) ADOConnection::outp("<font size=-1>sp_executesql N{$sql[1]},N$decl,$params</font>");
			$rez = mssql_query("sp_executesql N{$sql[1]},N$decl,$params");
			
		} else if (is_array($sql)) {
			# PrepareSP()
			$rez = mssql_execute($sql[1]);
			
		} else {
			$rez = mssql_query($sql,$this->_connectionID);
		}
		return $rez;
	}
	
	// returns true or false
	function _close()
	{ 
		if ($this->transCnt) $this->RollbackTrans();
		$rez = @mssql_close($this->_connectionID);
		$this->_connectionID = false;
		return $rez;
	}
	
	// mssql uses a default date like Dec 30 2000 12:00AM
	function UnixDate($v)
	{
		return ADORecordSet_array_mssql::UnixDate($v);
	}
	
	function UnixTimeStamp($v)
	{
		return ADORecordSet_array_mssql::UnixTimeStamp($v);
	}	
}
	
/*--------------------------------------------------------------------------------------
	 Class Name: Recordset
--------------------------------------------------------------------------------------*/

class ADORecordset_mssql extends ADORecordSet {	

	var $databaseType = "mssql";
	var $canSeek = true;
	var $hasFetchAssoc; // see http://phplens.com/lens/lensforum/msgs.php?id=6083
	// _mths works only in non-localised system
	
	function ADORecordset_mssql($id,$mode=false)
	{
		// freedts check...
		$this->hasFetchAssoc = function_exists('mssql_fetch_assoc');

		if ($mode === false) { 
			global $ADODB_FETCH_MODE;
			$mode = $ADODB_FETCH_MODE;

		}
		$this->fetchMode = $mode;
		return $this->ADORecordSet($id,$mode);
	}
	
	
	function _initrs()
	{
	GLOBAL $ADODB_COUNTRECS;	
		$this->_numOfRows = ($ADODB_COUNTRECS)? @mssql_num_rows($this->_queryID):-1;
		$this->_numOfFields = @mssql_num_fields($this->_queryID);
	}
	

	//Contributed by "Sven Axelsson" <[e-mail]>
	// get next resultset - requires PHP 4.0.5 or later
	function NextRecordSet()
	{
		if (!mssql_next_result($this->_queryID)) return false;
		$this->_inited = false;
		$this->bind = false;
		$this->_currentRow = -1;
		$this->Init();
		return true;
	}

	/* Use associative array to get fields array */
	function Fields($colname)
	{
		if ($this->fetchMode != ADODB_FETCH_NUM) return $this->fields[$colname];
		if (!$this->bind) {
			$this->bind = array();
			for ($i=0; $i < $this->_numOfFields; $i++) {
				$o = $this->FetchField($i);
				$this->bind[strtoupper($o->name)] = $i;
			}
		}
		
		 return $this->fields[$this->bind[strtoupper($colname)]];
	}
	
	/*	Returns: an object containing field information. 
		Get column information in the Recordset object. fetchField() can be used in order to obtain information about
		fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
		fetchField() is retrieved.	*/

	function &FetchField($fieldOffset = -1) 
	{
		if ($fieldOffset != -1) {
			$f = @mssql_fetch_field($this->_queryID, $fieldOffset);
		}
		else if ($fieldOffset == -1) {	/*	The $fieldOffset argument is not provided thus its -1 	*/
			$f = @mssql_fetch_field($this->_queryID);
		}
		$false = false;
		if (empty($f)) return $false;
		return $f;
	}
	
	function _seek($row) 
	{
		return @mssql_data_seek($this->_queryID, $row);
	}

	// speedup
	function MoveNext() 
	{
		if ($this->EOF) return false;
		
		$this->_currentRow++;
		
		if ($this->fetchMode & ADODB_FETCH_ASSOC) {
			if ($this->fetchMode & ADODB_FETCH_NUM) {
				//ADODB_FETCH_BOTH mode
				$this->fields = @mssql_fetch_array($this->_queryID);
			}
			else {
				if ($this->hasFetchAssoc) {// only for PHP 4.2.0 or later
					 $this->fields = @mssql_fetch_assoc($this->_queryID);
				} else {
					$flds = @mssql_fetch_array($this->_queryID);
					if (is_array($flds)) {
						$fassoc = array();
						foreach($flds as $k => $v) {
							if (is_numeric($k)) continue;
							$fassoc[$k] = $v;
						}
						$this->fields = $fassoc;
					} else
						$this->fields = false;
				}
			}
			
			if (is_array($this->fields)) {
				if (ADODB_ASSOC_CASE == 0) {
					foreach($this->fields as $k=>$v) {
						$this->fields[strtolower($k)] = $v;
					}
				} else if (ADODB_ASSOC_CASE == 1) {
					foreach($this->fields as $k=>$v) {
						$this->fields[strtoupper($k)] = $v;
					}
				}
			}
		} else {
			$this->fields = @mssql_fetch_row($this->_queryID);
		}
		if ($this->fields) return true;
		$this->EOF = true;
		
		return false;
	}

	
	// INSERT UPDATE DELETE returns false even if no error occurs in 4.0.4
	// also the date format has been changed from YYYY-mm-dd to dd MMM YYYY in 4.0.4. Idiot!
	function _fetch($ignore_fields=false) 
	{
		if ($this->fetchMode & ADODB_FETCH_ASSOC) {
			if ($this->fetchMode & ADODB_FETCH_NUM) {
				//ADODB_FETCH_BOTH mode
				$this->fields = @mssql_fetch_array($this->_queryID);
			} else {
				if ($this->hasFetchAssoc) // only for PHP 4.2.0 or later
					$this->fields = @mssql_fetch_assoc($this->_queryID);
				else {
					$this->fields = @mssql_fetch_array($this->_queryID);
					if (@is_array($$this->fields)) {
						$fassoc = array();
						foreach($$this->fields as $k => $v) {
							if (is_integer($k)) continue;
							$fassoc[$k] = $v;
						}
						$this->fields = $fassoc;
					}
				}
			}
			
			if (!$this->fields) {
			} else if (ADODB_ASSOC_CASE == 0) {
				foreach($this->fields as $k=>$v) {
					$this->fields[strtolower($k)] = $v;
				}
			} else if (ADODB_ASSOC_CASE == 1) {
				foreach($this->fields as $k=>$v) {
					$this->fields[strtoupper($k)] = $v;
				}
			}
		} else {
			$this->fields = @mssql_fetch_row($this->_queryID);
		}
		return $this->fields;
	}
	
	/*	close() only needs to be called if you are worried about using too much memory while your script
		is running. All associated result memory for the specified result identifier will automatically be freed.	*/

	function _close() 
	{
		$rez = mssql_free_result($this->_queryID);	
		$this->_queryID = false;
		return $rez;
	}
	// mssql uses a default date like Dec 30 2000 12:00AM
	function UnixDate($v)
	{
		return ADORecordSet_array_mssql::UnixDate($v);
	}
	
	function UnixTimeStamp($v)
	{
		return ADORecordSet_array_mssql::UnixTimeStamp($v);
	}
	
}


class ADORecordSet_array_mssql extends ADORecordSet_array {
	function ADORecordSet_array_mssql($id=-1,$mode=false) 
	{
		$this->ADORecordSet_array($id,$mode);
	}
	
		// mssql uses a default date like Dec 30 2000 12:00AM
	function UnixDate($v)
	{
	
		if (is_numeric(substr($v,0,1)) && ADODB_PHPVER >= 0x4200) return parent::UnixDate($v);
		
	global $ADODB_mssql_mths,$ADODB_mssql_date_order;
	
		//Dec 30 2000 12:00AM 
		if ($ADODB_mssql_date_order == 'dmy') {
			if (!preg_match( "|^([0-9]{1,2})[-/\. ]+([A-Za-z]{3})[-/\. ]+([0-9]{4})|" ,$v, $rr)) {
				return parent::UnixDate($v);
			}
			if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
			
			$theday = $rr[1];
			$themth =  substr(strtoupper($rr[2]),0,3);
		} else {
			if (!preg_match( "|^([A-Za-z]{3})[-/\. ]+([0-9]{1,2})[-/\. ]+([0-9]{4})|" ,$v, $rr)) {
				return parent::UnixDate($v);
			}
			if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
			
			$theday = $rr[2];
			$themth = substr(strtoupper($rr[1]),0,3);
		}
		$themth = $ADODB_mssql_mths[$themth];
		if ($themth <= 0) return false;
		// h-m-s-MM-DD-YY
		return  mktime(0,0,0,$themth,$theday,$rr[3]);
	}
	
	function UnixTimeStamp($v)
	{
	
		if (is_numeric(substr($v,0,1)) && ADODB_PHPVER >= 0x4200) return parent::UnixTimeStamp($v);
		
	global $ADODB_mssql_mths,$ADODB_mssql_date_order;
	
		//Dec 30 2000 12:00AM
		 if ($ADODB_mssql_date_order == 'dmy') {
			 if (!preg_match( "|^([0-9]{1,2})[-/\. ]+([A-Za-z]{3})[-/\. ]+([0-9]{4}) +([0-9]{1,2}):([0-9]{1,2}) *([apAP]{0,1})|"
			,$v, $rr)) return parent::UnixTimeStamp($v);
			if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
		
			$theday = $rr[1];
			$themth =  substr(strtoupper($rr[2]),0,3);
		} else {
			if (!preg_match( "|^([A-Za-z]{3})[-/\. ]+([0-9]{1,2})[-/\. ]+([0-9]{4}) +([0-9]{1,2}):([0-9]{1,2}) *([apAP]{0,1})|"
			,$v, $rr)) return parent::UnixTimeStamp($v);
			if ($rr[3] <= TIMESTAMP_FIRST_YEAR) return 0;
		
			$theday = $rr[2];
			$themth = substr(strtoupper($rr[1]),0,3);
		}
		
		$themth = $ADODB_mssql_mths[$themth];
		if ($themth <= 0) return false;
		
		switch (strtoupper($rr[6])) {
		case 'P':
			if ($rr[4]<12) $rr[4] += 12;
			break;
		case 'A':
			if ($rr[4]==12) $rr[4] = 0;
			break;
		default:
			break;
		}
		// h-m-s-MM-DD-YY
		return  mktime($rr[4],$rr[5],0,$themth,$theday,$rr[3]);
	}
}

/*
Code Example 1:

select 	object_name(constid) as constraint_name,
       	object_name(fkeyid) as table_name, 
        col_name(fkeyid, fkey) as column_name,
	object_name(rkeyid) as referenced_table_name,
   	col_name(rkeyid, rkey) as referenced_column_name
from sysforeignkeys
where object_name(fkeyid) = x
order by constraint_name, table_name, referenced_table_name,  keyno

Code Example 2:
select 	constraint_name,
	column_name,
	ordinal_position
from information_schema.key_column_usage
where constraint_catalog = db_name()
and table_name = x
order by constraint_name, ordinal_position

http://www.databasejournal.com/scripts/article.php/1440551
*/

?>