javascript - Show thank you message after form is submitted after PHP validation -


i have looked @ few solutions on here trying different ways of doing none working me.

here form:

<form action="<?php echo htmlspecialchars($_server['php_self']); ?>" method="post" name="contact" role="form">   <?php  //if error has occured echo error in red   if(isset($errormsg) && $errormsg) { echo "<p style=\"color: red;\">*",htmlspecialchars($errormsg),"</p>\n\n";   } ?>  <label for="name"><b>name:</b></label> <input type="text" name="name" id="name" placeholder="enter full name" value="<?php if(isset($_post['name'])) echo htmlspecialchars($_post['name']); ?>">    <label for="email"><b>email:</b></label> <input type="text" name="email" id="email" placeholder="enter valid email address..." value="<?php if(isset($_post['email'])) echo htmlspecialchars($_post['email']); ?>">  <label><b>subject:</b></label>     <input type="text" name="subject" id="subject" placeholder="please enter subject matter" value="<?php if(isset($_post['subject'])) echo htmlspecialchars($_post['subject']); ?>"> <label for="query"><b>query:</b></label> <textarea id="query" placeholder="please write message here..." name="query" value="<?php if(isset($_post['query']))echo htmlspecialchars($_post['query']);?>">  </textarea>  <input type="submit" name="submit" id="submit" value="submit" class="style-button">   </form>

i using 1 page website contact form @ bottom of page.

how can show thank message inside form when has been submitted , went through validation - without page going top?

php code:

<?php  // if submit clicked assign variables   if($_post && isset($_post['submit'], $_post['name'], $_post['email'],               $_post['subject'], $_post['query'])) {      $name = $_post['name'];      $email = $_post['email']; $subject = $_post['subject']; $query = $_post['query'];      //making sure page goes contact form errors instead of top of page      if(!isset($_post['$errormsg']))       {     ?>     <script>     window.location.hash = '#contact-form';     </script>     <?php }    // if name not entered display errormsg      if (!$name) {         $errormsg = "please enter name";  }   // if email not entered display errormsg  elseif (!$email || !preg_match("/^\s+@\s+$/", $email)) {  $errormsg = "please enter valid email address";   }   // if subject has not entered display errormsg      elseif (!$subject) {  $errormsg = "please enter subject";   }    // if query not entered display errormsg       elseif (!$query) {  $errormsg = "please enter query";    }    else {       //send email , redirect confirmation page   $toemail = "email@example.com";  $subject2 = "message recieved ". $name."";  $headers = "mime-version: 1.0\n"  ."from: \"".$name."\" <".$email.">\n"  ."content-type: text/html; charset-iso-8859-1\n";  $body = "email: ".$email."<br>\n"  ."subject: ".$subject."<br>\n"  ."email: ".$email."<br>\n"  ."query: ".$query."<br>\n"  ;  mail($toemail, $subject, $body, $headers);  if(mail($toemail, $subject, $body, $headers)){ $toemail =".$email"; $subject = "confirmation email"; $body = "your email has been sent"; header("location: index.php");   }   }}   ?>

somewhere, above html, processing form post. should setting $errormsg in there.

rule of thumb self-submitting web page: logic before view. also, avoid if() statement, initialize $errormsg on every page load.


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