What are the common reasons for the "chmod(): Operation not permitted" warning in PHP scripts when moving from XAMPP to a Ubuntu server?

The "chmod(): Operation not permitted" warning in PHP scripts when moving from XAMPP to a Ubuntu server is likely due to the file permissions being restricted on the Ubuntu server. To solve this issue, you can try changing the file permissions manually or using the `chmod` function in PHP to set the appropriate permissions for the files. 

// Change file permissions using chmod function
$file = 'path/to/your/file';
$permissions = 0644; // Set the desired permissions here

if (file_exists($file)) {
    chmod($file, $permissions);
    echo "File permissions changed successfully.";
} else {
    echo "File does not exist.";
}

Keywords

chmod operation not permitted XAMPP Ubuntu server PHP scripts

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