class HRDB{ protected $pdo; protected $res; protected $config; /*构造函数*/ function __construct($config){ $this-Config = $config; $this-connect(); } /*数据库连接*/ public function connect(){ $this-pdo = new PDO($this-Config['dsn']
class HRDB{ protected $pdo; protected $res; protected $config; /*构造函数*/ function __construct($config){ $this->Config = $config; $this->connect(); } /*数据库连接*/ public function connect(){ $this->pdo = new PDO($this->Config['dsn'], $this->Config['name'], $this->Config['password']); $this->pdo->query('set names utf8;'); //把结果序列化成stdClass //$this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ); //自己写代码捕获Exception $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } /*数据库关闭*/ public function close(){ $this->pdo = null; } public function query($sql){ $res = $this->pdo->query($sql); if($res){ $this->res = $res; } } public function exec($sql){ $res = $this->pdo->exec($sql); if($res){ $this->res = $res; } } public function fetchAll(){ return $this->res->fetchAll(); } public function fetch(){ return $this->res->fetch(); } public function fetchColumn(){ return $this->res->fetchColumn(); } public function lastInsertId(){ return $this->res->lastInsertId(); } /** * 参数说明 * int $debug 是否开启调试,开启则输出sql语句 * 0 不开启 * 1 开启 * 2 开启并终止程序 * int $mode 返回类型 * 0 返回多条记录 * 1 返回单条记录 * 2 返回行数 * string/array $table 数据库表,两种传值模式 * 普通模式: * 'tb_member, tb_money' * 数组模式: * array('tb_member', 'tb_money') * string/array $fields 需要查询的数据库字段,允许为空,默认为查找全部,两种传值模式 * 普通模式: * 'username, password' * 数组模式: * array('username', 'password') * string/array $sqlwhere 查询条件,允许为空,两种传值模式 * 普通模式: * 'and type = 1 and username like "%os%"' * 数组模式: * array('type = 1', 'username like "%os%"') * string $orderby 排序,默认为id倒序 */ public function select($debug, $mode, $table, $fields="*", $sqlwhere="", $orderby="tbid desc"){ //参数处理 if(is_array($table)){ $table = implode(', ', $table); } if(is_array($fields)){ $fields = implode(', ', $fields); } if(is_array($sqlwhere)){ $sqlwhere = ' and '.implode(' and ', $sqlwhere); } //数据库操作 if($debug === 0){ if($mode === 2){ $this->query("select count(tbid) from $table where 1=1 $sqlwhere"); $return = $this->fetchColumn(); }else if($mode === 1){ $this->query("select $fields from $table where 1=1 $sqlwhere order by $orderby"); $return = $this->fetch(); }else{ $this->query("select $fields from $table where 1=1 $sqlwhere order by $orderby"); $return = $this->fetchAll(); } return $return; }else{ if($mode === 2){ echo "select count(tbid) from $table where 1=1 $sqlwhere"; }else if($mode === 1){ echo "select $fields from $table where 1=1 $sqlwhere order by $orderby"; } else{ echo "select $fields from $table where 1=1 $sqlwhere order by $orderby"; } if($debug === 2){ exit; } } } /** * 参数说明 * int $debug 是否开启调试,开启则输出sql语句 * 0 不开启 * 1 开启 * 2 开启并终止程序 * int $mode 返回类型 * 0 无返回信息 * 1 返回执行条目数 * 2 返回最后一次插入记录的id * string/array $table 数据库表,两种传值模式 * 普通模式: * 'tb_member, tb_money' * 数组模式: * array('tb_member', 'tb_money') * string/array $set 需要插入的字段及内容,两种传值模式 * 普通模式: * 'username = "test", type = 1, dt = now()' * 数组模式: * array('username = "test"', 'type = 1', 'dt = now()') */ public function insert($debug, $mode, $table, $set){ //参数处理 if(is_array($table)){ $table = implode(', ', $table); } if(is_array($set)){ $set = implode(', ', $set); } //数据库操作 if($debug === 0){ if($mode === 2){ $this->query("insert into $table set $set"); $return = $this->lastInsertId(); }else if($mode === 1){ $this->exec("insert into $table set $set"); $return = $this->res; }else{ $this->query("insert into $table set $set"); $return = NULL; } return $return; }else{ echo "insert into $table set $set"; if($debug === 2){ exit; } } } /** * 参数说明 * int $debug 是否开启调试,开启则输出sql语句 * 0 不开启 * 1 开启 * 2 开启并终止程序 * int $mode 返回类型 * 0 无返回信息 * 1 返回执行条目数 * string $table 数据库表,两种传值模式 * 普通模式: * 'tb_member, tb_money' * 数组模式: * array('tb_member', 'tb_money') * string/array $set 需要更新的字段及内容,两种传值模式 * 普通模式: * 'username = "test", type = 1, dt = now()' * 数组模式: * array('username = "test"', 'type = 1', 'dt = now()') * string/array $sqlwhere 修改条件,允许为空,两种传值模式 * 普通模式: * 'and type = 1 and username like "%os%"' * 数组模式: * array('type = 1', 'username like "%os%"') */ public function update($debug, $mode, $table, $set, $sqlwhere=""){ //参数处理 if(is_array($table)){ $table = implode(', ', $table); } if(is_array($set)){ $set = implode(', ', $set); } if(is_array($sqlwhere)){ $sqlwhere = ' and '.implode(' and ', $sqlwhere); } //数据库操作 if($debug === 0){ if($mode === 1){ $this->exec("update $table set $set where 1=1 $sqlwhere"); $return = $this->res; }else{ $this->query("update $table set $set where 1=1 $sqlwhere"); $return = NULL; } return $return; }else{ echo "update $table set $set where 1=1 $sqlwhere"; if($debug === 2){ exit; } } } /** * 参数说明 * int $debug 是否开启调试,开启则输出sql语句 * 0 不开启 * 1 开启 * 2 开启并终止程序 * int $mode 返回类型 * 0 无返回信息 * 1 返回执行条目数 * string $table 数据库表 * string/array $sqlwhere 删除条件,允许为空,两种传值模式 * 普通模式: * 'and type = 1 and username like "%os%"' * 数组模式: * array('type = 1', 'username like "%os%"') */ public function delete($debug, $mode, $table, $sqlwhere=""){ //参数处理 if(is_array($sqlwhere)){ $sqlwhere = ' and '.implode(' and ', $sqlwhere); } //数据库操作 if($debug === 0){ if($mode === 1){ $this->exec("delete from $table where 1=1 $sqlwhere"); $return = $this->res; }else{ $this->query("delete from $table where 1=1 $sqlwhere"); $return = NULL; } return $return; }else{ echo "delete from $table where 1=1 $sqlwhere"; if($debug === 2){ exit; } } } }