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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 152 | $_comment = & $GLOBALS['comment']; |
| 153 | } elseif ( ! $_comment = wp_cache_get($comment, 'comment') ) { |
| 154 | $_comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment)); |
| 155 | if ( ! $_comment ) |
| 156 | return $null; |
| 157 | wp_cache_add($_comment->comment_ID, $_comment, 'comment'); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | $_comment = apply_filters('get_comment', $_comment); |
| 162 | |
| 163 | if ( $output == OBJECT ) { |
| 164 | return $_comment; |
| 165 | } elseif ( $output == ARRAY_A ) { |
| 166 | $__comment = get_object_vars($_comment); |
| 167 | return $__comment; |
| 168 | } elseif ( $output == ARRAY_N ) { |
| 169 | $__comment = array_values(get_object_vars($_comment)); |
| 170 | return $__comment; |