代碼如下:

public function SimpleDao() {

if ($this->_con == null) {

$this->_con = @mysql_connect("localhost", "root", "123456");

if ($this->_con == FALSE) {

echo("connect to db server failed.");

$this->_con = null;

return;

}

//$firephp->log("new DAO object");

@mysql_select_db("swan", $this->_con);

}

}

public function table($tablename) {

$this->_table = $tablename;

return $this;

}

public function query($sql) {

$result = @mysql_query($sql);

$ret = [];

if ($result) {

while ($row = mysql_fetch_array($result)) {

$ret[] = $row;

}

}

return $ret;

}

public function get($where = null) {

$sql = "select * from ".$this->_table;

$sql = $sql.$this->_getWhereString($where);

//echo "[get]".$sql."

";

return $this->query($sql);

}

public function insert($params) {

if ($params == null || !is_array($params)) {

return -1;

}

$keys = $this->_getParamKeyString($params);

$vals = $this->_getParamValString($params);

$sql = "insert into ".$this->_table."(".$keys.") values(".$vals.")";

//echo "[insert]".$sql."

";

$result = @mysql_query($sql);

if (! $result) {

return -1;

}

return @mysql_insert_id();

}

public function update($params, $where = null) {

if ($params == null || !is_array($params)) {

return -1;

}

$upvals = $this->_getUpdateString($params);

$wheres = $this->_getWhereString($where);

$sql = "update ".$this->_table." set ".$upvals." ".$wheres;

//echo "[update]".$sql."

";

$result = @mysql_query($sql);

if (! $result) {

return -1;

}

return @mysql_affected_rows();

}

public function delete($where) {

$wheres = $this->_getWhereString($where);

$sql = "delete from ".$this->_table.$wheres;

//echo "[delete]".$sql."

";

$result = @mysql_query($sql);

if (! $result) {

return -1;

}

return @mysql_affected_rows();

}

protected function _getParamKeyString($params) {

$keys = array_keys($params);

return implode(",", $keys);

}

protected function _getParamValString($params) {

$vals = array_values($params);

return "'".implode("','", $vals)."'";

}

private function _getUpdateString($params) {

//echo "_getUpdateString";

$sql = "";

if (is_array($params)) {

$sql = $this->_getKeyValString($params, ",");

}

return $sql;

}

private function _getWhereString($params) {

//echo "_getWhereString";

$sql = "";

if (is_array($params)) {

$sql = " where ";

$where = $this->_getKeyValString($params, " and ");

$sql = $sql.$where;

}

return $sql;

}

private function _getKeyValString($params, $split) {

$str = "";

if (is_array($params)) {

$paramArr = array();

foreach($params as $key=>$val) {

$valstr = $val;

if (is_string($val)) {

$valstr = "'".$val."'";

}

$paramArr[] = $key."=".$valstr;

}

$str = $str.implode($split, $paramArr);

}

return $str;

}

public function release() {

@mysql_close();

}

}

function T($table) {

return (new SimpleDao())->table($table);

}

?>

http://www.bkjia.com/PHPjc/728110.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/728110.htmlTechArticle代碼如下:?php //require_once('FirePHPCore/FirePHP.class.php'); //$firephp = FirePHP::getInstance(true); // debugger in firefox class SimpleDao { private $_table =...

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