?? adodb-odbc.inc.php
字號:
{ global $ADODB_FETCH_MODE; $table = strtoupper($table); $schema = false; $this->_findschema($table,$schema); $savem = $ADODB_FETCH_MODE; $ADODB_FETCH_MODE = ADODB_FETCH_NUM; if (false) { // after testing, confirmed that the following does not work becoz of a bug $qid2 = odbc_tables($this->_connectionID); $rs = new ADORecordSet_odbc($qid2); $ADODB_FETCH_MODE = $savem; if (!$rs) return false; $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; $rs->_fetch(); while (!$rs->EOF) { if ($table == strtoupper($rs->fields[2])) { $q = $rs->fields[0]; $o = $rs->fields[1]; break; } $rs->MoveNext(); } $rs->Close(); $qid = odbc_columns($this->_connectionID,$q,$o,strtoupper($table),'%'); } else switch ($this->databaseType) { case 'access': case 'vfp': case 'db2': $qid = odbc_columns($this->_connectionID); break; default: $qid = @odbc_columns($this->_connectionID,'%','%',strtoupper($table),'%'); if (empty($qid)) $qid = odbc_columns($this->_connectionID); break; } if (empty($qid)) return false; $rs = new ADORecordSet_odbc($qid); $ADODB_FETCH_MODE = $savem; if (!$rs) return false; $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; $rs->_fetch(); $retarr = array(); /* $rs->fields indices 0 TABLE_QUALIFIER 1 TABLE_SCHEM 2 TABLE_NAME 3 COLUMN_NAME 4 DATA_TYPE 5 TYPE_NAME 6 PRECISION 7 LENGTH 8 SCALE 9 RADIX 10 NULLABLE 11 REMARKS */ while (!$rs->EOF) { //adodb_pr($rs->fields); if (strtoupper($rs->fields[2]) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) { $fld = new ADOFieldObject(); $fld->name = $rs->fields[3]; $fld->type = $this->ODBCTypes($rs->fields[4]); // ref: http://msdn.microsoft.com/library/default.asp?url=/archive/en-us/dnaraccgen/html/msdn_odk.asp // access uses precision to store length for char/varchar if ($fld->type == 'C' or $fld->type == 'X') { if ($this->databaseType == 'access') $fld->max_length = $rs->fields[6]; else if ($rs->fields[4] <= -95) // UNICODE $fld->max_length = $rs->fields[7]/2; else $fld->max_length = $rs->fields[7]; } else $fld->max_length = $rs->fields[7]; $fld->not_null = !empty($rs->fields[10]); $fld->scale = $rs->fields[8]; $retarr[strtoupper($fld->name)] = $fld; } else if (sizeof($retarr)>0) break; $rs->MoveNext(); } $rs->Close(); //-- crashes 4.03pl1 -- why? return $retarr; } function Prepare($sql) { if (! $this->_bindInputArray) return $sql; // no binding $stmt = odbc_prepare($this->_connectionID,$sql); if (!$stmt) { // we don't know whether odbc driver is parsing prepared stmts, so just return sql return $sql; } return array($sql,$stmt,false); } /* returns queryID or false */ function _query($sql,$inputarr=false) { GLOBAL $php_errormsg; $php_errormsg = ''; $this->_error = ''; if ($inputarr) { if (is_array($sql)) { $stmtid = $sql[1]; } else { $stmtid = odbc_prepare($this->_connectionID,$sql); if ($stmtid == false) { $this->_errorMsg = $php_errormsg; return false; } } if (! odbc_execute($stmtid,$inputarr)) { //@odbc_free_result($stmtid); if ($this->_haserrorfunctions) { $this->_errorMsg = odbc_errormsg(); $this->_errorCode = odbc_error(); } return false; } } else if (is_array($sql)) { $stmtid = $sql[1]; if (!odbc_execute($stmtid)) { //@odbc_free_result($stmtid); if ($this->_haserrorfunctions) { $this->_errorMsg = odbc_errormsg(); $this->_errorCode = odbc_error(); } return false; } } else $stmtid = odbc_exec($this->_connectionID,$sql); $this->_lastAffectedRows = 0; if ($stmtid) { if (@odbc_num_fields($stmtid) == 0) { $this->_lastAffectedRows = odbc_num_rows($stmtid); $stmtid = true; } else { $this->_lastAffectedRows = 0; odbc_binmode($stmtid,$this->binmode); odbc_longreadlen($stmtid,$this->maxblobsize); } if ($this->_haserrorfunctions) { $this->_errorMsg = ''; $this->_errorCode = 0; } else $this->_errorMsg = $php_errormsg; } else { if ($this->_haserrorfunctions) { $this->_errorMsg = odbc_errormsg(); $this->_errorCode = odbc_error(); } else $this->_errorMsg = $php_errormsg; } return $stmtid; } /* Insert a null into the blob field of the table first. Then use UpdateBlob to store the blob. Usage: $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)'); $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1'); */ function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB') { return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false; } // returns true or false function _close() { $ret = @odbc_close($this->_connectionID); $this->_connectionID = false; return $ret; } function _affectedrows() { return $this->_lastAffectedRows; } } /*-------------------------------------------------------------------------------------- Class Name: Recordset--------------------------------------------------------------------------------------*/class ADORecordSet_odbc extends ADORecordSet { var $bind = false; var $databaseType = "odbc"; var $dataProvider = "odbc"; var $useFetchArray; var $_has_stupid_odbc_fetch_api_change; function ADORecordSet_odbc($id,$mode=false) { if ($mode === false) { global $ADODB_FETCH_MODE; $mode = $ADODB_FETCH_MODE; } $this->fetchMode = $mode; $this->_queryID = $id; // the following is required for mysql odbc driver in 4.3.1 -- why? $this->EOF = false; $this->_currentRow = -1; //$this->ADORecordSet($id); } // returns the field object function &FetchField($fieldOffset = -1) { $off=$fieldOffset+1; // offsets begin at 1 $o= new ADOFieldObject(); $o->name = @odbc_field_name($this->_queryID,$off); $o->type = @odbc_field_type($this->_queryID,$off); $o->max_length = @odbc_field_len($this->_queryID,$off); if (ADODB_ASSOC_CASE == 0) $o->name = strtolower($o->name); else if (ADODB_ASSOC_CASE == 1) $o->name = strtoupper($o->name); return $o; } /* Use associative array to get fields array */ function Fields($colname) { if ($this->fetchMode & ADODB_FETCH_ASSOC) 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)]]; } function _initrs() { global $ADODB_COUNTRECS; $this->_numOfRows = ($ADODB_COUNTRECS) ? @odbc_num_rows($this->_queryID) : -1; $this->_numOfFields = @odbc_num_fields($this->_queryID); // some silly drivers such as db2 as/400 and intersystems cache return _numOfRows = 0 if ($this->_numOfRows == 0) $this->_numOfRows = -1; //$this->useFetchArray = $this->connection->useFetchArray; $this->_has_stupid_odbc_fetch_api_change = ADODB_PHPVER >= 0x4200; } function _seek($row) { return false; } // speed up SelectLimit() by switching to ADODB_FETCH_NUM as ADODB_FETCH_ASSOC is emulated function &GetArrayLimit($nrows,$offset=-1) { if ($offset <= 0) { $rs =& $this->GetArray($nrows); return $rs; } $savem = $this->fetchMode; $this->fetchMode = ADODB_FETCH_NUM; $this->Move($offset); $this->fetchMode = $savem; if ($this->fetchMode & ADODB_FETCH_ASSOC) { $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); } $results = array(); $cnt = 0; while (!$this->EOF && $nrows != $cnt) { $results[$cnt++] = $this->fields; $this->MoveNext(); } return $results; } function MoveNext() { if ($this->_numOfRows != 0 && !$this->EOF) { $this->_currentRow++; $row = 0; if ($this->_has_stupid_odbc_fetch_api_change) $rez = @odbc_fetch_into($this->_queryID,$this->fields); else $rez = @odbc_fetch_into($this->_queryID,$row,$this->fields); if ($rez) { if ($this->fetchMode & ADODB_FETCH_ASSOC) { $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); } return true; } } $this->fields = false; $this->EOF = true; return false; } function _fetch() { $row = 0; if ($this->_has_stupid_odbc_fetch_api_change) $rez = @odbc_fetch_into($this->_queryID,$this->fields,$row); else $rez = @odbc_fetch_into($this->_queryID,$row,$this->fields); if ($rez) { if ($this->fetchMode & ADODB_FETCH_ASSOC) { $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); } return true; } $this->fields = false; return false; } function _close() { return @odbc_free_result($this->_queryID); }}?>
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -