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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 |
|---|---|
| 598 | * @return array |
| 599 | */ |
| 600 | function get_column_info() { |
| 601 | if ( isset( $this->_column_headers ) ) |
| 602 | return $this->_column_headers; |
| 603 | |
| 604 | $columns = get_column_headers( $this->screen ); |
| 605 | $hidden = get_hidden_columns( $this->screen ); |
| 606 | |
| 607 | $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $this->get_sortable_columns() ); |
| 608 | |
| 609 | $sortable = array(); |
| 610 | foreach ( $_sortable as $id => $data ) { |
| 611 | if ( empty( $data ) ) |
| 612 | continue; |
| 613 | |
| 614 | $data = (array) $data; |
| 615 | if ( !isset( $data[1] ) ) |
| 616 | $data[1] = false; |