PHP-Formular-Validierung, um Alarm zu tun, wenn kein Fehler

Question

Ich habe die folgende Form Validierung.

<?php 

    $error_occured = 0; 
    $error_name = ""; 
    $error_email = ""; 
    $error_contact = ""; 
    $error_comments = ""; 

    if(isset($_POST["tx_name"])) { 

      if(($tx_name == "") || (!preg_match("/^[a-zA-Z ]*$/",$tx_name))) { 
        $error_occured = 1; 
        $error_name = "Please enter a valid name"; 
       } 

      if(($tx_email == "") || (!filter_var($tx_email, FILTER_VALIDATE_EMAIL))) { 
        $error_occured = 1; 
        $error_email = "Please enter a valid email"; 
       } 

      if(($tx_contact == "") || !(is_numeric($tx_contact))) { 
        $error_occured = 1; 
        $error_contact = "Please enter a valid contact number"; 
       } 

      if($tx_comments == "") { 
        $error_occured = 1; 
        $error_comments = "Please enter your message"; 
       } 


     } 

    if(isset($_POST["tx_name"]) && $error_occured = 0) { 
      echo "<script>alert('Hi!');</script>"; 
     } 

?> 

Die Validierung funktioniert gut und wenn es keinen Fehler gibt, sollte es eine Warnung ausgeben. Wenn ich jedoch das Formular ohne Fehler absende, wird die Warnmeldung nicht angezeigt. Wie behebe ich das?

Answer 1

wie diese

<?php 

$error_occured = 0; 
$error_name = ""; 
$error_email = ""; 
$error_contact = ""; 
$error_comments = ""; 

if(isset($_POST["tx_name"])) { 

     if(($tx_name == "") || (!preg_match("/^[a-zA-Z ]*$/",$tx_name))) { 
       $error_occured = 1; 
       $error_name = "Please enter a valid name"; 
      } 

     if(($tx_email == "") || (!filter_var($tx_email, FILTER_VALIDATE_EMAIL))) { 
       $error_occured = 1; 
       $error_email = "Please enter a valid email"; 
      } 

     if(($tx_contact == "") || !(is_numeric($tx_contact))) { 
       $error_occured = 1; 
       $error_contact = "Please enter a valid contact number"; 
      } 

     if($tx_comments == "") { 
       $error_occured = 1; 
       $error_comments = "Please enter your message"; 
      } 

    if($error_occured != 1) { 
     echo "<script>alert('Hi!');</script>"; 
     } 
} 



?>