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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 217 | global $wp_roles; |
| 218 | |
| 219 | if ( is_numeric($cap) ) |
| 220 | $cap = $this->translate_level_to_cap($cap); |
| 221 | |
| 222 | $args = array_slice(func_get_args(), 1); |
| 223 | $args = array_merge(array($cap, $this->id), $args); |
| 224 | $caps = call_user_func_array('map_meta_cap', $args); |
| 225 | // Must have ALL requested caps |
| 226 | $capabilities = apply_filters('user_has_cap', $this->allcaps, $caps, $args); |
| 227 | foreach ($caps as $cap) { |
| 228 | //echo "Checking cap $cap<br/>"; |
| 229 | if(empty($capabilities[$cap]) || !$capabilities[$cap]) |
| 230 | return false; |
| 231 | } |
| 232 | |
| 233 | return true; |
| 234 | } |
| 235 | |