What role does file permission (CHMOD) play in the deletion of files in PHP?

File permissions (CHMOD) play a crucial role in the deletion of files in PHP as they determine whether a file can be deleted or not. If a file does not have the appropriate write permissions, PHP will not be able to delete it. To solve this issue, you need to ensure that the file you want to delete has the correct permissions set to allow PHP to delete it. 

$file = 'example.txt';

// Check if the file has the correct permissions to be deleted
if (is_writable($file)) {
    // Delete the file
    unlink($file);
    echo 'File deleted successfully.';
} else {
    echo 'File cannot be deleted due to insufficient permissions.';
}

Keywords

file permission CHMOD deletion PHP security

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