Code. Useful Snippets.

You can easily check a user’s capability in WordPress using the current_user_can function. Unfortunately this breaks sometimes when trying to check roles. For example, you cannot use that function to check if a user’s role is equivalent to or greater than a subscriber.

The function below will allow you to check a user’s role against a single or multiple roles. Just pass the roles to check against as an array. This function will always check if a user has the administrator role even if it is not passed as a role.

To check if the current user has the editor and author roles you would do the following:

// Define roles to check
$roles = array('editor','author');

// Check roles
$in_role = check_user_role($roles);

// Do something based on role
if ($in_role) {
  // User in role, do something
} else {
  // User not in role do something else
}

Sometimes you will find yourself unhappy with the JPEG compression used in WordPress when it resizes your images. Luckily WordPress provides a filter to adjust the compression percentage. You can change the number 100 below to whatever you are comfortable with.

The default compression level is set to 90%. Increase the percentage above 90 if you would like higher quality images and drop below 90 for smaller file sizes. Place the code in your functions.php file.

We like a clean interface in our WordPress dashboard. Place the code below in your functions.php file to disable the default WordPress widgets. Be sure to remove the lines of the widgets that you want to keep.