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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 |
|---|---|
| 225 | //has_cap('edit_post', post_id) |
| 226 | function has_cap($cap) { |
| 227 | if ( is_numeric($cap) ) |
| 228 | $cap = $this->translate_level_to_cap($cap); |
| 229 | |
| 230 | $args = array_slice(func_get_args(), 1); |
| 231 | $args = array_merge(array($cap, $this->id), $args); |
| 232 | $caps = call_user_func_array('map_meta_cap', $args); |
| 233 | // Must have ALL requested caps |
| 234 | $capabilities = apply_filters('user_has_cap', $this->allcaps, $caps, $args); |
| 235 | foreach ($caps as $cap) { |
| 236 | //echo "Checking cap $cap<br/>"; |
| 237 | if(empty($capabilities[$cap]) || !$capabilities[$cap]) |
| 238 | return false; |
| 239 | } |
| 240 | |
| 241 | return true; |
| 242 | } |
| 243 | |