What strategies can be implemented to ensure consistent directory permissions for dynamically created directories in PHP?

To ensure consistent directory permissions for dynamically created directories in PHP, you can use the `chmod()` function to set the desired permissions after creating the directory. By specifying the appropriate permissions (e.g., 755 for read, write, and execute for owner, and read and execute for group and others), you can ensure that the directory has the correct permissions regardless of how it was created.

// Create a new directory
$directory = 'new_directory';
mkdir($directory);

// Set the directory permissions to 755
chmod($directory, 0755);