PHP code snippet – How to validate format and size of uploaded file via ?
<?php if (isset($_POST["upload"])) { // Get Image Dimension $fileinfo = @getimagesize($_FILES["file-input"]["tmp_name"]); $width = $fileinfo[0]; $height = $fileinfo[1]; $allowed_image_extension = array( "png", "jpg", "jpeg" ); // Get image file extension $file_extension = pathinfo($_FILES["file-input"]["name"], PATHINFO_EXTENSION); // Validate file input to check if is not empty if (! file_exists($_FILES["file-input"]["tmp_name"])) { $response = array( "type" => "error", "message" => "Choose image file to upload." ); } // Validate file input to check if is with valid extension else if (! in_array($file_extension, $allowed_image_extension)) { $response = array( "type" => "error", "message" => "Upload valiid images. Only PNG and JPEG are allowed." ); echo $result; } // Validate image file size else if (($_FILES["file-input"]["size"] > 2000000)) { $response = array( "type" => "error", "message" => "Image size exceeds 2MB" ); } // Validate image file dimension else if ($width > "300" || $height > "200") { $response = array( "type" => "error", "message" => "Image dimension should be within 300X200" ); } else { $target = "image/" . basename($_FILES["file-input"]["name"]); if (move_uploaded_file($_FILES["file-input"]["tmp_name"], $target)) { $response = array( "type" => "success", "message" => "Image uploaded successfully." ); } else { $response = array( "type" => "error", "message" => "Problem in uploading image files." ); } } } ?>