What are the potential reasons for errors in uploading PDF files through PHP scripts?

Potential reasons for errors in uploading PDF files through PHP scripts include incorrect file permissions, exceeding upload_max_filesize or post_max_size limits in php.ini, and issues with the file upload handling code itself. To solve these issues, ensure that the file permissions are set correctly, adjust the upload_max_filesize and post_max_size limits in php.ini if needed, and review and debug the file upload handling code for any errors. 

<?php
// Increase file upload size limit
ini_set('upload_max_filesize', '10M');
ini_set('post_max_size', '10M');

// Check for errors in file upload
if ($_FILES['pdf_file']['error'] !== UPLOAD_ERR_OK) {
    echo 'Error uploading file. Please try again.';
    exit;
}

// Process the uploaded PDF file
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["pdf_file"]["name"]);

if (move_uploaded_file($_FILES["pdf_file"]["tmp_name"], $target_file)) {
    echo "The file ". basename( $_FILES["pdf_file"]["name"]). " has been uploaded.";
} else {
    echo "Sorry, there was an error uploading your file.";
}
?>

Keywords

file upload PDF PHP script error handling MIME type

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