About commonly used function encapsulation in CI frameworks

This article mainly introduces the common function encapsulation of the CI framework, and analyzes the commonly used database query, insertion, deletion, update and debugging operation skills of the CI framework in the form of examples. Friends who need it can refer to it

The examples in this article describe common function encapsulation of CI frameworks. Share it with everyone for your reference, the details are as follows:

/**
* 封装查询函数
*/
public function get_what($table='',$where=array(),$fields = ' * '){
    if( '' == $table ){
      return false;
    }
    //查询并返回相关结果
    $query = $this->db->select($fields)->where($where)->get($table);
    $res = $query->result_array();
    return $res;
}
/**
* 封装单条查询函数
*/
public function get_row($table='',$where=array(),$fields = ' * '){
    if( '' == $table ){
      return false;
    }
    //查询并返回相关结果
    $query = $this->db->select($fields)->where($where)->get($table);
    $res = $query->row_array();
    return $res;
}
/**
* 封装更新函数
*/
public function update_what($table='', $where=array(), $data = array()){
    if('' == $table || true === empty($where) || true === empty($data)){
      return false;
    }
    //更新相应的字段
    $query = $this->db->update($table,$data,$where);
    return $query;
}
/**
* 扩展数据库函数之自增 自减
* using：
* $table = 'codeuser';
$where = array('id'=>1);
$data = array('usestate'=>'usestate+1','imgtype' => 'imgtype-1');
*/
public function update_count($table = '', $where=array(), $data=array()){
     //如果表名为空 或者数据为空则直接 返回false
     if('' == $table || empty($data)){
       return false;
     }
     foreach($data as $key => $val){
       if(false !== stripos($val,'+') || false !== stripos($val,'-')){
         $this->db->set($key, $val, FALSE);
       }else{
         $this->db->set($key, $val);
       }
     }
     $res = $this->db->where($where)->update($table);
     return $res;
}
/**
* 封装插入函数
*/
public function insert_what($table = '', $data = array()){
    if('' == $table || true === empty($data)){
      return false;
    }
    //插入 相关记录
    $query = $this->db->insert($table, $data);
    return $query;
}
/**
* 删除记录封装函数
*/
public function delete_what($table = '', $where=array()){
    if(true === empty($where) || '' == $table){
      return false;
    }
    //删除相关表记录
    $query = $this->db->delete($table,$where);
    return $query;
}
/**
* debug 相关函数
*/
 public function debug_what($org_error = ''){
    $con = $this->router->fetch_class();
    $func = $this->router->fetch_method();
    if($org_error){
      $error .= date("Y-m-d H:i:s",time())."\r\n";
      $error .= __FILE__."\r\n";
      $error .= $con." 控制器下的：\r\n";
      $error .= $func." 方法调试信息如下：\r\n";
      $error .= $org_error;file_put_contents("./error_log.txt",$error."\r\n",FILE_APPEND);
    }
}

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