php - if else statement is not working on codeigniter -

i have few if else statement on returning true or false, , every statement not working properly. have tried many ways don't know problem.it helpful if fix this.

here code model

function exists($email){     $this->db->where('email',$email);     $query=$this->db->get('member_info');     echo "model called"; // after execution text shown not others     if ($query->num_rows == 1) {                    return true;                 echo "i got one";     }else{         return false;         echo "i got nothing";     }        } 

and here controller

function is_exists($email){     echo "this loaded";  //this line works     if($this->validation_model->exists($email)){         return false;         echo "true"; //this doesn't      }else{         return true;         echo "false"; // doesn't     } } 

you returning function before print echo part. should echo before return.

also change line check more one

if ($query->num_rows() > 0 ) {

update

try method. replace table name, id value accordingly.

$query = $this->db->query("select id form your_table email=".$email); if ($query->num_rows() > 0 ){ echo "i got one"; return true; } else{ echo "i got nothing"; return false; } 

also @ controller logic return false when there exist email. better change true false returning of controller.