Are there any specific considerations or differences in using chmod() in PHP when working with directories compared to individual files?

When using chmod() in PHP to change permissions on directories, you need to be aware that the permissions set on a directory can affect the files and subdirectories within it. When changing permissions on a directory, you should consider the implications for all files and subdirectories contained within it. It's important to use the correct octal notation for permissions when setting them on directories. 

// Set the permissions for a directory and its contents
$dir = '/path/to/directory';
$permissions = 0755; // Example permissions for directories
chmod($dir, $permissions);

// Set the permissions for files within the directory
$files = glob($dir . '/*');
foreach ($files as $file) {
    chmod($file, $permissions);
}

Keywords

chmod PHP directories files permissions

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