Suchfunktion mit Rahmen codeigniter, php

Question

mein Problem ist ich, wann immer ich fname und mname gebe ich einen Fehler von der Datenbank erhielt. Ich möchte nur beide fname und mname im Suchfeld suchen.

meine search Reglerfunktion

public function search() 
    { 
    $li = $this->session->userdata('logged_in'); 
    $id = $this->session->userdata('idnumber'); 
    if($li == TRUE) 
    { 
     $this->load->model('users_model'); 
     $this->load->helper('smiley'); 
     $this->load->library('table'); 
     $image_array = get_clickable_smileys('http://localhost/efg/images/smileys', 'status'); 
     $col_array = $this->table->make_columns($image_array, 8); 
     $image_array2 = get_clickable_smileys('http://localhost/efg/images/smileys', 'status'); 
     $col_array2 = $this->table->make_columns($image_array2, 8); 
     $this->data['smiley_table1'] = $this->table->generate($col_array); 
     $this->data['smiley_tables'] = $this->table->generate($col_array2);   
     if($this->input->post()) 
     { 
     $search = $this->input->post('search'); 
     $memb = $this->users_model->search($search); 
     $usersearch = $this->users_model->search($search); 
     $grpsearch = $this->users_model->searchgrp($search); 
     redirect ('home/profile/'.$memb); 
     } 
    } 
} 

Mein users_model Modell

public function search($search) 
{ 
    $this->db->select('*'); 
    $this->db->from('users'); 
    $this->db->like('username',$search); 
    $this->db->or_like('fname',$search); 
    $this->db->or_like('lname',$search); 
    $this->db->or_like('mname',$search); 
    $query = $this->db->get(); 
    foreach ($query->result_array() as $row) 
    { 
     $memb = $row['idnumber']; 
    } 
    $error = 'There is no record for the one you searched. Please go Back.'; 
    $query1 = $this->db->query("SELECT * FROM users WHERE idnumber ='$memb'"); 
    $hehe = $query1->result_array(); 
    if($hehe==NULL) 
    { 
    echo $error; exit; 
    } 
    else 
    { 
    return $memb; 
    } 
} 

Answer 1

immer die Zugriffe auf Variablen in Zustand unter Verwendung prüfen sind, bevor die Bedingung erklärt. Wenn es um den Zustand passieren tut, was der Ausgang

 public function search($search) 
     { 
      $this->db->select('*'); 
      $this->db->from('users'); 
      $this->db->like('username',$search); 
      $this->db->or_like('fname',$search); 
      $this->db->or_like('lname',$search); 
      $this->db->or_like('mname',$search); 
      $query = $this->db->get(); 
      $memb = null; 
      foreach ($query->result_array() as $row) 
      { 
       $memb = $row['idnumber']; 
      } 
      $error = 'There is no record for the one you searched. Please go Back.'; 
      $query1 = $this->db->query("SELECT * FROM users WHERE idnumber =$memb"); 
      $hehe = $query1->result_array(); 
      if($hehe==NULL) 
      { 
      return $error; 
      } 
      else 
      { 
      return $memb; 
      } 
     } 

Answer 2

Sicherstellen, dass die Variablen, die youll in Abfragen verwenden gesetzt wäre. Trap vor dem Ausführen von Abfragen. Verwenden Sie auch Query Builder (Active Record), wenn Sie können.

public function search($search) 
{ 
    $this->db->select('*'); 
    $this->db->from('users'); 
    $this->db->like('username',$search); 
    $this->db->or_like('fname',$search); 
    $this->db->or_like('lname',$search); 
    $this->db->or_like('mname',$search); 
    $query = $this->db->get(); 

    $memb = ''; 
    if ($query->result_array() > 0) { 
     foreach ($query->result_array() as $row) { 
     $memb = $row['idnumber'];   
     } 
     if ($memb) { 

     $this->db->select("*"); 
     $this->db->where("idnumber", $memb); 
     $query1 = $this->db->get("users"); 

     //$query1 = $this->db->query("SELECT * FROM users WHERE idnumber ='$memb'"); 

     $hehe = $query1->result_array(); 
     return ($hehe) ? $memb : false; 
     } 
     return false; 
    } 

    $error = 'There is no record for the one you searched. Please go Back.'; 
    return $error; 
}