php does not redirect to new page when no other output is being sent to browser

Question

I'm trying to use the following script to redirect but it executes and then hangs before it redirects. Just before the html I have the header() command.

 <?php



require("../../../../wp-load.php");



if(isset($_POST['submit'])){

   $file            = $_FILES['file'];
   $fileName        = $file['name'];
   $fileType        = $file['type'];
   $fileTmpLocation = $file['tmp_name'];
   $fileSize        = $file['size'];
   $fileError       = $file['error'];


   if(($_POST['link']==='') && $_FILES['file']['name']===''){
       unset($_POST);
       unset($_FILES); 
       echo '<script language="javascript">';
       echo 'alert("You must specify either a link or a file to upload")';
       echo '</script>';
   }

   if ($_FILES['file']['name']!='' && $fileError !== 0){
       unset($_POST);
       unset($_FILES); 
       echo '<script language="javascript">';
       echo 'alert("There was an error uploading your file, try again")';
       echo '</script>';
   }

   if ($fileSize >500000){
       unset($_POST);
       unset($_FILES); 
       echo '<script language="javascript">';
       echo 'alert("Your file is too large. Please limit file size to 5MB")';
       echo '</script>';
   }

   $name = explode('.',$fileName);

   if($_FILES['file']['name']!='' && count($name)!= 2){
       echo '<script language="javascript">';
       echo 'alert("File names must be in form fileName.fileType only 1 . allowed")';
       echo '</script>';
   }

   $fileNameSave = uniqid($name[0].'_',true).'.'.$name[1];
   $pos = strpos($fileNameSave, '.');
   if ($pos !== false) {
     $fileNameSave = substr_replace($fileNameSave, '', $pos, strlen('.'));
   }


   move_uploaded_file($fileTmpLocation,"../uploads/".$fileNameSave);
   unset($_POST);
   header("Location: https://www.sustainablewestonma.org/update.php");
   exit;
}



?>
<!DOCTYPE html>
<html>
   <head>
      <title>Update ITN</title>
      <style>#d1{text-align:center;}#d3{width:30vw;margin:0 auto;}</style>
   </head>
   <body>
     <div id='d1'>
        <h1>SustainableWestonMA.org</h1>
        <h2>In-The-News</h2>
     </div>

     <div id='d3'>

       <form action="update_itn.php" method="POST" enctype="multipart/form-data">
         <pre>
          Date:    <input type="date" name="date"  id="date" class="date" /><br>
          Event:   <input type="text" name="event" id="event"  /><br>
          Link:    <input type="text" name="link"  id="link"/><br>
          or File: <input type="file" name="file"  id="file"/><br>
          <button type="submit" name="submit" id="submit">Update</button></pre>
       </form>
     </div>
      <div id='d2'>
        <pre>In the example below:

     October 7, 2019 Survey finds 292 gas leaks in Weston 
     https://weston.wickedlocal.com/news/20191007/survey-finds-292-gas-leaks-in-weston

     date  = October 7, 2019 
     Event = Survey finds 292 gas leaks in Weston 
     Link  = https://weston.wickedlocal.com/news/20191007/survey-finds-292-gas-leaks-in-weston

     You must specify a link or a file you want to link to but NOT both. File uploads are limited to 5MB</pre></div>
   </body>
</html>

Are you getting form data? If not then that is the issue, because redirect is placed inside IF block and executes if condition is true only. — Masood, Oct 28 '19 at 20:32
Possible duplicate of [Php header location redirect not working](https://stackoverflow.com/questions/21226166/php-header-location-redirect-not-working) — Masood, Oct 28 '19 at 20:47
Here it has been already answered. https://stackoverflow.com/questions/21226166/php-header-location-redirect-not-working/30283281 — Masood, Oct 28 '19 at 20:47
These DON'T answer the question as I am not outputting anything before the redirect — DCR, Oct 28 '19 at 21:36
every time I visit your site and use this script I get the javascript alert or the redirect ... what isn't working? — lagbox, Oct 28 '19 at 23:21

score 1 · Accepted Answer · answered Oct 28 '19 at 22:07

1

There is a whitespace before your opening <?php tag. This is causing the header redirection to fail, as output (the whitespace) has been sent to the browser before the header redirection.

answered Oct 28 '19 at 22:07

rubenccdev

161
4

php does not redirect to new page when no other output is being sent to browser

1 Answers1