Şifre Hatırlatma Formu Yardım İstiyorum Çok Basit Brşey

<?php 
    require_once('recaptchalib.php'); 
  $mysql_user = "yyyy"; 
  $mysql_pass = "xxx"; 
  $mysql_database = "zzzz"; 
  $mysql_host = "localhost"; 
  ?>

<?php 
   
  if ($_POST) { 
      $conn = mysql_connect($mysql_host, $mysql_user, $mysql_pass); 
      mysql_select_db($mysql_database); 
      $user = anti_injection($_POST['login']); 
      $pass1 = anti_injection($_POST['senha1']); 
      $pass2 = anti_injection($_POST['senha2']); 
      $email = anti_injection($_POST['email']); 
  	 
     $sorgu="select * from accounts where mail='".$_POST['mail']."'"; 
     $gonder=mysql_query($sorgu); 
      
  /* DENEME 
     echo $sorgu."<br>"."Seçilen kayit sayisi".mysql_num_rows($gonder)."<br>"; 
  */    
     if (mysql_num_rows($gonder)>0) { 
   
                  $to = $_POST["mail"]; 
                  $subject = "Your registration at $_SERVER[HTTP_HOST]"; 
                  $message = "DENEME"; 
   
                  $headers = "MIME-Version: 1.0n"; 
                  $headers .= "Content-type: text/plain; charset=iso-8859-1n"; 
                  $headers .= "Content-Transfer-Encoding: 8bitn"; 
                  $headers .= "From: $_SERVER[HTTP_POST] <$aset[ContactEmail]>\n"; 
                  $headers .= "X-Priority: 1n"; 
                  $headers .= "X-MSMail-Priority: Highn"; 
                  $headers .= "X-Mailer: PHP/" . phpversion()."n"; 
   
                  $d= mail($to, $subject, $message, $headers);                
   
      
        echo "SONUÇ: ".$d; 
            
           if($d) 
           {echo "SIFRENIZ E-POSTA ADRESINIZE GÖNDERILMISTIR.";} 
           else 
           { 
           echo "SIFRENIZ GÖNDERILEMEDI."; 
           } 
            
            
     } 
  } 
   
   
  // Função Anti Injection 
   
  function anti_injection($sql) 
  { 
  $sql = preg_replace(sql_regcase("/(from|select|insert|delete|where|drop table|show tables|#|\*|--|\\\\)/"),"",$sql); 
  $sql = trim($sql); 
  $sql = strip_tags($sql); 
  $sql = addslashes($sql); 
  return $sql; 
  } 
   
  // Verificar Campos Vazios 
   
  function valida($campos){ 
    foreach($campos as $c){ 
        if(empty($c)){ 
          echo ":: Write all fields ::<br>"; 
          return false; 
        }else{ 
          return true; 
        } 
    } 
  } 
   
   
  ?> 
   
  <h1>Sifremi Unuttum</h1> 
   
  <form name="sifremi_unuttum" method="post" action="?git=<?php echo $_REQUEST['git']; ?>"> 
   
  <table> 
     <tr> 
        <td width="30%">Mail Adresi:</td> 
        <td width="70%"><input type="text" name="mail" /></td> 
     </tr> 
     <tr> 
        <td></td> 
        <td><input type="submit" value="Gönder" /></td> 
     </tr> 
  </tr> 
  </table> 
   
  </form>

<?php 
   
  if ($_POST) { 
      $conn = mysql_connect($mysql_host, $mysql_user, $mysql_pass); 
      mysql_select_db($mysql_database); 
      $email = $_POST['mail']; 
  	 
     $gonder=mysql_fetch_array(mysql_query("select * from accounts where mail='$email')); 
   
     if ($gonder) { 
   
                  $to = $_POST["mail"]; 
                  $subject = "Your registration at $_SERveR[HTTP_HOST]"; 
                  $message = "DENEME"; 
   
                  $headers = "MIME-Version: 1.0n"; 
                  $headers .= "Content-type: text/plain; charset=iso-8859-1n"; 
                  $headers .= "Content-Transfer-Encoding: 8bitn"; 
                  $headers .= "From: $_SERVER[HTTP_POST] <$aset[ContactEmail]>\n"; 
                  $headers .= "X-Priority: 1n"; 
                  $headers .= "X-MSMail-Priority: Highn"; 
                  $headers .= "X-Mailer: PHP/" . phpversion()."n"; 
   
                  $d= mail($to, $subject, $message, $headers);                
   
      
        echo "SONUÇ: ".$d; 
            
           if($d) 
           {echo "SIFRENIZ E-POSTA ADRESINIZE GÖNDERILMISTIR.";} 
           else 
           { 
           echo "SIFRENIZ GÖNDERILEMEDI."; 
           } 
            
            
     } 
  } 
   
   
  // Função Anti Injection 
   
  function anti_injection($sql) 
  { 
  $sql = preg_replace(sql_regcase("/(from|select|insert|delete|where|drop table|show tables|#|\*|--|\\\\)/"),"",$sql); 
  $sql = trim($sql); 
  $sql = strip_tags($sql); 
  $sql = addslashes($sql); 
  return $sql; 
  } 
   
  // Verificar Campos Vazios 
   
  function valida($campos){ 
    foreach($campos as $c){ 
        if(empty($c)){ 
          echo ":: Write all fields ::<br>"; 
          return false; 
        }else{ 
          return true; 
        } 
    } 
  } 
   
   
  ?> 
   
  <h1>Sifremi Unuttum</h1> 
   
  <form name="sifremi_unuttum" method="post" action="?git=<?php echo $_REQUEST['git']; ?>"> 
   
  <table> 
     <tr> 
        <td width="30%">Mail Adresi:</td> 
        <td width="70%"><input type="text" name="mail" /></td> 
     </tr> 
     <tr> 
        <td></td> 
        <td><input type="submit" value="Gönder" /></td> 
     </tr> 
  </tr> 
  </table> 
   
  </form>