How to use regular expression in the WHERE clause of query in Laravel? - php

Question

I have a table named "Shows". There is a column "show_date". I want to retrieve the shows whose show_date is todays date.
Following is my query
$s = DB::table('shows')->get();
$a = DB::table('shows')->select('show_date')->get();
foreach ($s as $key => $value)
{
$date_test = date('Y-m-d');
$s_test = DB::table('shows')->where('show_date',preg_grep('/"'.$value->show_date.'"./', $a->show_date))->get();
echo "<pre>"; var_dump($s_test);
if(explode(" ",$value->show_date)[0] == date('Y-m-d'))
{
$shows1 = DB::table('shows')->where('id',$value->id)->get();
$s1 = DB::table('transactions')
->select(DB::raw("GROUP_CONCAT(selected_seats SEPARATOR '') as selected_seats"),'userid','amount','show_id')
->where("show_id","=",$value->id)
->groupBy('userid')
->groupBy('amount')
->orderBy('userid','ASC')
->orderBy('amount', 'DESC')
->get();
if($s1 != null)
{
echo $value->id;
$c = count($s1);
$sub_count1 = 0; $next_id = ""; $total_array = 0;
for($i=0;$i<$c;$i++)
{
$first_character = $s1[$i]->selected_seats;
$sub_count = substr_count($s1[$i]->selected_seats, ',');
$sub_count1 = $sub_count1 + $sub_count;//to get the total no. of seats
for($j=0,$k=0;$j<$sub_count;$j++,$k++)
{
// split the string with comma.
$s = explode(',',$first_character);
// get total no. of seat names listed in one row in table.eg A 1,B 2. Then $sub_count would be 2
$p = $s[$j][0];
}
}
// get seats for each show from transaction table.
$demo = DB::table('theater_setting')->select('row_seats_selling_price','row')->where('show_id',$value->id)->get();
foreach ($demo as $key => $val) {
$categoryArr[$val->row]=$val->row_seats_selling_price;
}
$demo4 = DB::table('theater_setting')->select('row_seats_selling_price','row')->where('show_id',$value->id)->get();
$demo3 = DB::table('transactions')->where('show_id',$value->id)->select('selected_seats','userid')->get();
for($p=0;$p<count($demo3);$p++)
{
$arr = explode(',', substr($demo3[$p]->selected_seats,0,-1));
$trans[] = $demo3[$p]->userid;
foreach ($arr as $k => $v)
{
$seats[$demo3[$p]->userid][]=$v;
}
}
foreach ($seats as $user_id=>$v)
{
for ($h=0; $h < count($v); $h++)
{
$e = explode(" ", $v[$h]);
$p = $e[0];
$demo_array[$p][$user_id][] = $v[$h];
}
$users = DB::table('users')->where('id',$user_id)->get();
}
return view('Backend.NewReportByShowsCategory2')->with([
's1'=>$s1,'shows1'=>$shows1,'demo'=>$demo,'categoryArr'=>$categoryArr,'demo3'=>$demo3,'demo4'=>$demo4,'demo_array'=>$demo_array]);
}
else
{
return view('Backend.NewReportByShowsCategory2')->with([
's1'=>$s1]);
}
}
}
I am getting the following error:
Object of class stdClass could not be converted to string

Answer 1

There is alternative way:
DB::table('shows')->where('show_date', 'REGEXP', Carbon\Carbon::now()->toDateString())->get();

Answer 2

You could convert show_date to a DATE and compare it with the current date -
$s_test = DB::table('shows')->whereRaw('DATE(show_date)=CURRENT_DATE')->get()
However, here's the regex query for selecting rows with a particular date (the current date in this case),
DB::table('shows')->whereRaw("show_date REGEXP '". Carbon\Carbon::now()->toDateString() . "'")->get()