php 에서 strops 사용후 500에러가 납니다.

$omr = '1,누가바/죠스바/보석바|2,누가바/죠스바/보석바|3,누가바/죠스바/보석바|4,누가바/죠스바/보석바|5,누가바/죠스바/보석바|6,누가바/죠스바/보석바|';

$omr_member = '1,누가바 죠스바 보석바|2,누가바와죠스바|3,누가바 보석바|4,죠스바 보석바|5,죠스바와 보석바 누가바|6,죠스죠스죠스바 보석바 누가바|';

 

$omr_arr = explode('|',$omr);

$count = count($omr_arr);

$count = $count - 2;

$omr_member = explode('|',$omr_member);

for($i=0;$i<=$count;$i++) {

                    $omr_arr_explode = explode(',',$omr_arr[$i]);

                    $member = explode(',',$omr_member[$i]);

 

                    $omr_arr_count = count($omr_arr_explode);

                    $omr_arr_count = $omr_arr_count - 2;

                    $member_count = count($member);

                    $member_count = $member_count - 2;

                    $point = 0;     

 

                    if(strops('/',$omr_arr_explode[1]) !== false) {

                        $result = explode('/',$omr_arr_explode[1]);

                        $result_count = count($result);

                    

                        for($j=0;$j<$result_count;$j++){

                            if(strops($member[1],$result[$j]) !== false){

                                $point +=1;

                                $total_sum +=1;

                            }

                            else{

                                $point;

                                $total_sum;

                            }

                        }

                    }

                    else{

 

                        $result_one = $omr_arr_explode[1];

                        if(strops($member[1],$result_one) !== false){

                            $point +=1;

                            $total_sum +=1;

                        }

                        else{ 

                            $point;

                            $total_sum;

                        }

                    }