Search the Community

In PHP 5, I conventionally opened my pages with <?php but within the pages I often used <? to open a php block, e.g., <?echo $variable; ?>. In PHP 7, I find it is necessary to always use <?php and follow it with a space, e.g., <?php echo $variable; ?> I haven't been able to find any reference to this syntax change so my question: Is this a new requirement of PHP 7? Can it be turned off? Otherwise, I will need to edit all of the sites where my earlier habit was used, which I think I can do but would feel compelled to spend some hours testing afterward.

hello all. i was just wondering between these two versions of PHP - 5 & 7. right now i'm practicing on if PHP 5. and now i'm thinking of upgrading to PHP 7. and i want to know if my current code works with the new version or not. if i upgraded my PHP to 7, should i need to change all or some parts of the codes? thank you in advance.

I was wondering is there is any vulnerabilities in this code: <?php $target_dir = "uploads/"; $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); $uploadOk = 1; $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); // Check if image file is a actual image or fake image if(isset($_POST["submit"])) { $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]); if($check !== false) { echo "File is an image - " . $check["mime"] . "."; $uploadOk = 1; } else { echo "File is not an image."; $uploadOk = 0; } } // Check if file already exists if (file_exists($target_file)) { echo "Sorry, file already exists."; $uploadOk = 0; } // Check file size if ($_FILES["fileToUpload"]["size"] > 500000) { echo "Sorry, your file is too large."; $uploadOk = 0; } // Allow certain file formats if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg" && $imageFileType != "gif" ) { echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed."; $uploadOk = 0; } // Check if $uploadOk is set to 0 by an error if ($uploadOk == 0) { echo "Sorry, your file was not uploaded."; // if everything is ok, try to upload file } else { if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) { echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded."; } else { echo "Sorry, there was an error uploading your file."; } } ?> cause I know attackers can put a virus in images and I don't want any viruses on my website. Also I wanted to know one more thing. How could I make it so that users can only upload a certain size of image like 50x50? The code used in this thread came from this page: https://www.w3schools.com/php/php_file_upload.asp