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- <?php
- require_once 'common.php';
- class DB_msql extends DB_common
- {
-
-
- public $phptype = 'msql';
-
- public $dbsyntax = 'msql';
-
- public $features = array(
- 'limit' => 'emulate',
- 'new_link' => false,
- 'numrows' => true,
- 'pconnect' => true,
- 'prepare' => false,
- 'ssl' => false,
- 'transactions' => false,
- );
-
- public $errorcode_map = array();
-
- public $connection;
-
- public $dsn = array();
-
- public $_result;
-
-
-
- public function __construct()
- {
- parent::__construct();
- }
-
-
-
- public function connect($dsn, $persistent = false)
- {
- if (!PEAR::loadExtension('msql')) {
- return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
- }
- $this->dsn = $dsn;
- if ($dsn['dbsyntax']) {
- $this->dbsyntax = $dsn['dbsyntax'];
- }
- $params = array();
- if ($dsn['hostspec']) {
- $params[] = $dsn['port']
- ? $dsn['hostspec'] . ',' . $dsn['port']
- : $dsn['hostspec'];
- }
- $connect_function = $persistent ? 'msql_pconnect' : 'msql_connect';
- $ini = ini_get('track_errors');
- $php_errormsg = '';
- if ($ini) {
- $this->connection = @call_user_func_array(
- $connect_function,
- $params
- );
- } else {
- @ini_set('track_errors', 1);
- $this->connection = @call_user_func_array(
- $connect_function,
- $params
- );
- @ini_set('track_errors', $ini);
- }
- if (!$this->connection) {
- if (($err = @msql_error()) != '') {
- return $this->raiseError(
- DB_ERROR_CONNECT_FAILED,
- null,
- null,
- null,
- $err
- );
- } else {
- return $this->raiseError(
- DB_ERROR_CONNECT_FAILED,
- null,
- null,
- null,
- $php_errormsg
- );
- }
- }
- if (!@msql_select_db($dsn['database'], $this->connection)) {
- return $this->msqlRaiseError();
- }
- return DB_OK;
- }
-
-
-
- public function msqlRaiseError($errno = null)
- {
- $native = $this->errorNative();
- if ($errno === null) {
- $errno = $this->errorCode($native);
- }
- return $this->raiseError($errno, null, null, null, $native);
- }
-
-
-
- public function errorNative()
- {
- return @msql_error();
- }
-
-
-
- public function errorCode($errormsg)
- {
- static $error_regexps;
-
-
- $errormsg = preg_replace('/^msql[a-z_]+\(\): /', '', $errormsg);
- if (!isset($error_regexps)) {
- $error_regexps = array(
- '/^Access to database denied/i'
- => DB_ERROR_ACCESS_VIOLATION,
- '/^Bad index name/i'
- => DB_ERROR_ALREADY_EXISTS,
- '/^Bad order field/i'
- => DB_ERROR_SYNTAX,
- '/^Bad type for comparison/i'
- => DB_ERROR_SYNTAX,
- '/^Can\'t perform LIKE on/i'
- => DB_ERROR_SYNTAX,
- '/^Can\'t use TEXT fields in LIKE comparison/i'
- => DB_ERROR_SYNTAX,
- '/^Couldn\'t create temporary table/i'
- => DB_ERROR_CANNOT_CREATE,
- '/^Error creating table file/i'
- => DB_ERROR_CANNOT_CREATE,
- '/^Field .* cannot be null$/i'
- => DB_ERROR_CONSTRAINT_NOT_NULL,
- '/^Index (field|condition) .* cannot be null$/i'
- => DB_ERROR_SYNTAX,
- '/^Invalid date format/i'
- => DB_ERROR_INVALID_DATE,
- '/^Invalid time format/i'
- => DB_ERROR_INVALID,
- '/^Literal value for .* is wrong type$/i'
- => DB_ERROR_INVALID_NUMBER,
- '/^No Database Selected/i'
- => DB_ERROR_NODBSELECTED,
- '/^No value specified for field/i'
- => DB_ERROR_VALUE_COUNT_ON_ROW,
- '/^Non unique value for unique index/i'
- => DB_ERROR_CONSTRAINT,
- '/^Out of memory for temporary table/i'
- => DB_ERROR_CANNOT_CREATE,
- '/^Permission denied/i'
- => DB_ERROR_ACCESS_VIOLATION,
- '/^Reference to un-selected table/i'
- => DB_ERROR_SYNTAX,
- '/^syntax error/i'
- => DB_ERROR_SYNTAX,
- '/^Table .* exists$/i'
- => DB_ERROR_ALREADY_EXISTS,
- '/^Unknown database/i'
- => DB_ERROR_NOSUCHDB,
- '/^Unknown field/i'
- => DB_ERROR_NOSUCHFIELD,
- '/^Unknown (index|system variable)/i'
- => DB_ERROR_NOT_FOUND,
- '/^Unknown table/i'
- => DB_ERROR_NOSUCHTABLE,
- '/^Unqualified field/i'
- => DB_ERROR_SYNTAX,
- );
- }
- foreach ($error_regexps as $regexp => $code) {
- if (preg_match($regexp, $errormsg)) {
- return $code;
- }
- }
- return DB_ERROR;
- }
-
-
-
- public function disconnect()
- {
- $ret = @msql_close($this->connection);
- $this->connection = null;
- return $ret;
- }
-
-
-
- public function simpleQuery($query)
- {
- $this->last_query = $query;
- $query = $this->modifyQuery($query);
- $result = @msql_query($query, $this->connection);
- if (!$result) {
- return $this->msqlRaiseError();
- }
-
-
- if ($this->_checkManip($query)) {
- $this->_result = $result;
- return DB_OK;
- } else {
- $this->_result = false;
- return $result;
- }
- }
-
-
-
- public function nextResult($result)
- {
- return false;
- }
-
-
-
- public function fetchInto($result, &$arr, $fetchmode, $rownum = null)
- {
- if ($rownum !== null) {
- if (!@msql_data_seek($result, $rownum)) {
- return null;
- }
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $arr = @msql_fetch_array($result, MSQL_ASSOC);
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- } else {
- $arr = @msql_fetch_row($result);
- }
- if (!$arr) {
- return null;
- }
- if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
- $this->_rtrimArrayValues($arr);
- }
- if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
- $this->_convertNullArrayValuesToEmpty($arr);
- }
- return DB_OK;
- }
-
-
-
- public function freeResult($result)
- {
- return is_resource($result) ? msql_free_result($result) : false;
- }
-
-
-
- public function numCols($result)
- {
- $cols = @msql_num_fields($result);
- if (!$cols) {
- return $this->msqlRaiseError();
- }
- return $cols;
- }
-
-
-
- public function numRows($result)
- {
- $rows = @msql_num_rows($result);
- if ($rows === false) {
- return $this->msqlRaiseError();
- }
- return $rows;
- }
-
-
-
- public function affectedRows()
- {
- if (!$this->_result) {
- return 0;
- }
- return msql_affected_rows($this->_result);
- }
-
-
-
- public function nextId($seq_name, $ondemand = true)
- {
- $seqname = $this->getSequenceName($seq_name);
- $repeat = false;
- do {
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $result = $this->query("SELECT _seq FROM ${seqname}");
- $this->popErrorHandling();
- if ($ondemand && DB::isError($result) &&
- $result->getCode() == DB_ERROR_NOSUCHTABLE) {
- $repeat = true;
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $result = $this->createSequence($seq_name);
- $this->popErrorHandling();
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- } else {
- $repeat = false;
- }
- } while ($repeat);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
- $result->free();
- return $arr[0];
- }
-
-
-
- public function createSequence($seq_name)
- {
- $seqname = $this->getSequenceName($seq_name);
- $res = $this->query('CREATE TABLE ' . $seqname
- . ' (id INTEGER NOT NULL)');
- if (DB::isError($res)) {
- return $res;
- }
- $res = $this->query("CREATE SEQUENCE ON ${seqname}");
- return $res;
- }
-
-
-
- public function dropSequence($seq_name)
- {
- return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
- }
-
-
-
- public function quoteIdentifier($str)
- {
- return $this->raiseError(DB_ERROR_UNSUPPORTED);
- }
-
-
-
- public function quoteFloat($float)
- {
- return $this->escapeSimple(str_replace(',', '.', strval(floatval($float))));
- }
-
-
-
- public function escapeSimple($str)
- {
- return addslashes($str);
- }
-
-
-
- public function tableInfo($result, $mode = null)
- {
- if (is_string($result)) {
-
- $id = @msql_query(
- "SELECT * FROM $result",
- $this->connection
- );
- $got_string = true;
- } elseif (isset($result->result)) {
-
- $id = $result->result;
- $got_string = false;
- } else {
-
- $id = $result;
- $got_string = false;
- }
- if (!is_resource($id)) {
- return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
- }
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
- $count = @msql_num_fields($id);
- $res = array();
- if ($mode) {
- $res['num_fields'] = $count;
- }
- for ($i = 0; $i < $count; $i++) {
- $tmp = @msql_fetch_field($id);
- $flags = '';
- if ($tmp->not_null) {
- $flags .= 'not_null ';
- }
- if ($tmp->unique) {
- $flags .= 'unique_key ';
- }
- $flags = trim($flags);
- $res[$i] = array(
- 'table' => $case_func($tmp->table),
- 'name' => $case_func($tmp->name),
- 'type' => $tmp->type,
- 'len' => msql_field_len($id, $i),
- 'flags' => $flags,
- );
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- }
-
- if ($got_string) {
- @msql_free_result($id);
- }
- return $res;
- }
-
-
-
- public function getSpecialQuery($type)
- {
- switch ($type) {
- case 'databases':
- $id = @msql_list_dbs($this->connection);
- break;
- case 'tables':
- $id = @msql_list_tables(
- $this->dsn['database'],
- $this->connection
- );
- break;
- default:
- return null;
- }
- if (!$id) {
- return $this->msqlRaiseError();
- }
- $out = array();
- while ($row = @msql_fetch_row($id)) {
- $out[] = $row[0];
- }
- return $out;
- }
-
- }
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