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                            laravel whereRaw 和 where(DB::raw(''))

用 where(DB::raw(''))的時候，結尾會被增加一個莫名其妙的 is null()

用toSql()發現的,而使用whereRaw則不會

~~~
Copy $student=DB::table("info")->whereRaw('id> ? and fenshu >= ?',[2,300])->get();//多個條件

~~~

**建議使用laravel whereRaw**

**特別注意：函數中的$start變量需要加單引號**

~~~
Copy XcReservation::where(['status'=>1,'teacher_id'=>$teacherid])
    ->whereRaw("DATE_FORMAT(start_time,'%Y-%m-%d') >= '$start'")
    ->whereRaw("DATE_FORMAT(start_time,'%Y-%m-%d') <= '$end'")
    ->get();

~~~

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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