导读:
lasscls_mysql{ var $querynum =0; var $link ; var $histories ; var $dbhost ; var $dbuser ; var $dbpw ; var $dbcharset ; var $pconnect ; var $tablepre ; var $time ; var $goneaway =5; function connect( $dbhost , $dbuser , $dbpw , $dbname = , $...
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lass cls_mysql{
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var $querynum = 0;
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var $link;
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var $histories;
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var $dbhost;
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var $dbuser;
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var $dbpw;
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var $dbcharset;
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var $pconnect;
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var $tablepre;
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var $time;
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var $goneaway = 5;
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function connect($dbhost, $dbuser, $dbpw, $dbname = '', $dbcharset = '', $pconnect = 0, $tablepre='', $time = 0) {
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$this->dbhost = $dbhost;
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$this->dbuser = $dbuser;
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$this->dbpw = $dbpw;
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$this->dbname = $dbname;
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$this->dbcharset = $dbcharset;
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$this->pconnect = $pconnect;
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$this->tablepre = $tablepre;
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$this->time = $time;
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if($pconnect) {
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if(!$this->link = mysql_pconnect($dbhost, $dbuser, $dbpw)) {
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$this->halt('can not connect to mysql server');
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}
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} else {
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if(!$this->link = mysql_connect($dbhost, $dbuser, $dbpw)) {
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$this->halt('can not connect to mysql server');
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}
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}
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if($this->version() > '4.1') {
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if($dbcharset) {
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mysql_query("set character_set_connection=".$dbcharset.", character_set_results=".$dbcharset.", character_set_client=binary", $this->link);
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}
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if($this->version() > '5.0.1') {
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mysql_query("set sql_mode=''", $this->link);
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}
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}
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if($dbname) {
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mysql_select_db($dbname, $this->link);
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}
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}
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function fetch_array($query, $result_type = mysql_assoc) {
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return mysql_fetch_array($query, $result_type);
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}
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function result_first($sql) {
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$query = $this->query($sql);
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return $this->result($query, 0);
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}
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function fetch_first($sql) {
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$query = $this->query($sql);
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return $this->fetch_array($query);
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}
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function fetch_all($sql, $id = '') {
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$arr = array();
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$query = $this->query($sql);
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while($data = $this->fetch_array($query)) {
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$id ? $arr[$data[$id]] = $data : $arr[] = $data;
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}
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return $arr;
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}
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function cache_gc() {
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$this->query("delete from {$this->tablepre}sqlcaches where expiry<$this->time");
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}
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function query($sql, $type = '', $cachetime = false) {
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$func = $type == 'unbuffered' && @function_exists('mysql_unbuffered_query') ? 'mysql_unbuffered_query' : 'mysql_query';
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if(!($query = $func($sql, $this->link)) && $type != 'silent') {
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$this->halt('mysql query error', $sql);
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}
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$this->querynum++;
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$this->histories[] = $sql;
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return $query;
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}
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function affected_rows() {
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return mysql_affected_rows($this->link);
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}
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function error() {
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return (($this->link) ? mysql_error($this->link) : mysql_error());
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}
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function errno() {
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return intval(($this->link) ? mysql_errno($this->link) : mysql_errno());
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}
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function result($query, $row) {
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$query = @mysql_result($query, $row);
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return $query;
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}
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function num_rows($query) {
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$query = mysql_num_rows($query);
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return $query;
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}
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function num_fields($query) {
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return mysql_num_fields($query);
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}
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function free_result($query) {
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return mysql_free_result($query);
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}
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function insert_id() {
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return ($id = mysql_insert_id($this->link)) >= 0 ? $id : $this->result($this->query("select last_insert_id()"), 0);
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}
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function fetch_row($query) {
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$query = mysql_fetch_row($query);
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return $query;
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}
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function fetch_fields($query) {
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return mysql_fetch_field($query);
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}
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function version() {
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return mysql_get_server_info($this->link);
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}
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function close() {
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return mysql_close($this->link);
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}
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function halt($message = '', $sql = '') {
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$error = mysql_error();
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$errorno = mysql_errno();
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if($errorno == 2006 && $this->goneaway-- > 0) {
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$this->connect($this->dbhost, $this->dbuser, $this->dbpw, $this->dbname, $this->dbcharset, $this->pconnect, $this->tablepre, $this->time);
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$this->query($sql);
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} else {
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$s = 'error:'.$error.'
';
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$s .= 'errno:'.$errorno.'
';
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$s .= 'sql::'.$sql;
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exit($s);
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}
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}
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}
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