PHP - Restrict File Extensions?

How do I only allow jpg and png file extensions to be uploaded as a attachment. My current code is below

 

$msg = '';
if (array_key_exists('userfile', $_FILES)) {

// create object of PHPMailer class with boolean parameter which sets/unsets exception.
$mail = new PHPMailer(true);
try {
    
    //$mail->isSMTP(); // using SMTP protocol
    $mail->Host = 'host'; // SMTP host as gmail 
    $mail->SMTPAuth = true;  // enable smtp authentication
    $mail->Username = 'emailaddress';  // sender gmail host              
    $mail->Password = 'emailpassword'; // sender gmail host password                          
    $mail->SMTPSecure = 'ssl';  // for encrypted connection                           
    $mail->Port = 587;   // port for SMTP     

    $mail->setFrom('emailaddress', "Name"); // sender's email and name
    $mail->addAddress('emailaddress', "Name");  // receiver's email and name
    
    $attachmentNames = [];
    
    //Attach multiple files one by one
    for ($ct = 0; $ct < count($_FILES['userfile']['tmp_name']); $ct++) {
        $uploadfile = tempnam(sys_get_temp_dir(), hash('sha256', $_FILES['userfile']['name'][$ct]));
        $filename = $_FILES['userfile']['name'][$ct];
        if (move_uploaded_file($_FILES['userfile']['tmp_name'][$ct], $uploadfile)) {
            if(isset($uploadfile))
            $mail->addAttachment($uploadfile, $filename);
            $attachmentNames[] = $_FILES['userfile']['name'][$ct];
        } else {
            $msg .= 'Failed to move file to ' . $uploadfile;
        }
    }

 

Hiya,

Firstly, I'm a complete novice, apologies! But I have got my upload.php working which is nice. I will post the code below.

However, I would now like to restrict the file size and file type to only word documents.

I currently have a restriction of 200KB but it's not working - no idea why as I've looked at other similar codes and they look the same.

Also, just to complicate things - can I stop files overwriting each other when uploaded? At the moment, if 2 people upload files with the same name one will overwrite the other.

Is this too many questions in 1?

Any help is very much appreciated!

Code below:

Code: [Select]
<form enctype="multipart/form-data" action="careers.php" method="POST">
        Please choose a file: <input name="uploaded" type="file" /><br />
<input type="submit" value="Upload" />
</form>

<?php 
 $target = "upload/"; 
 $target = $target . basename( $_FILES['uploaded']['name']) ; 
 $ok=1; 
 
 //This is our size condition 
 if ($uploaded_size > 200) 
 { 
 echo "Your file is too large.<br>"; 
 $ok=0; 
 } 
 
 //This is our limit file type condition 
 if ($uploaded_type =="text/php") 
 { 
 echo "No PHP files<br>"; 
 $ok=0; 
 } 
 
 //Here we check that $ok was not set to 0 by an error 
 if ($ok==0) 
 { 
 Echo "Sorry your file was not uploaded"; 
 } 
 
 //If everything is ok we try to upload it 
 else 
 { 
 if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target)) 
 { 
 echo "Your file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded."; 
 } 
 else 
 { 
 echo "Sorry, there was a problem uploading your file."; 
 } 
 } 
 ?>

Hello one and all,

Just a quick request here, I've written a script that sends an email with an attached file by the user. (docx, txt, pdf, doc, rtf) are the formats I have accepted. At the moment I'm sending them with the following...

Code: [Select]
$fileatt_type = "application/pdf"; // File Type
It works fine with all formats in older email clients, i.e, like yahoo before they updated the layout, but in the newer versions it's specific and if I try to send it this way it is always delivered as a .PDF and doesn't open if it is any of the other formats.

It may sound silly but I've searched a fair bit for the other extensions or formats to include instead of the above code (maybe something like application/doc or something) but there doesn't seem to be a list.

Can anyone point me in the right direction?

Much obliged, PHP the learned.

I have solved this now.

I want these two extensions to work together Note that the plugin has 2 codes

1

 https://wordpress.org/plugins/qty-increment-buttons-for-woocommerce/ 

2

 https://wordpress.org/plugins/woo-product-price-x-quantity-preview/#installation