Bloodshot Records
Chicago-based record company website & ecommerce store. Developed in Drupal 5
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Checking if a user has a given role in D6
Drupal's API doesn't contain any ready-made function to check if a user has a certain role. While it's certainly easy enough to do, it can take a moment to figure out initially. Here's a little function that demonstrates how to do it. It isn't itself particularly useful since checking for roles is trivial without it, but it should serve as a point of demonstration.
<?php
/**
* Function to determine is a given user has a role.
*
* @param $role
* A string containing the role we want to check.
* @param $uid
* The UID of the user we wish to examine for the role. If not provided,
* the currently logged in user will be user.
* @return
* TRUE if the user has the role. FALSE otherwise.
*/
function <modulename>_user_has_role($role, $uid = FALSE) {
// Can't just check for !$uid since UID 0 is the anonymous user.
if ($uid === FALSE) {
global $user;
}
else {
$user = user_load($uid);
}
// Check for the role.
if (in_array($role, $user->roles)) {
// Role found
return TRUE;
}
// Role not found.
return FALSE;
}
?>
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