How can PHP be used to upload files to a directory with a size limit of 300 kB?

To upload files to a directory with a size limit of 300 kB in PHP, you can use the `$_FILES` superglobal to access the uploaded file information, check the file size using the `size` attribute, and validate it against the maximum allowed size. If the file size exceeds the limit, you can display an error message to the user. If the file size is within the limit, you can move the file to the desired directory using the `move_uploaded_file` function. 

<?php
$maxFileSize = 300 * 1024; // 300 KB in bytes

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    if ($_FILES['file']['size'] > $maxFileSize) {
        echo "Error: File size exceeds the limit of 300 KB.";
    } else {
        $uploadDir = 'uploads/';
        $uploadFile = $uploadDir . basename($_FILES['file']['name']);
        
        if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadFile)) {
            echo "File uploaded successfully.";
        } else {
            echo "Error uploading file.";
        }
    }
}
?>

<form method="post" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" value="Upload">
</form>

Keywords

PHP file upload directory size limit 300 kB

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