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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 |
|---|---|
| 320 | } |
| 321 | ?> |
| 322 | </td> |
| 323 | <?php |
| 324 | break; |
| 325 | |
| 326 | case 'plugins': ?> |
| 327 | <?php if ( has_filter( 'wpmublogsaction' ) ) { |
| 328 | echo "<td valign='top' class='$column_name column-$column_name'$style>"; |
| 329 | do_action( 'wpmublogsaction', $blog['blog_id'] ); ?> |
| 330 | </td> |
| 331 | <?php } |
| 332 | break; |
| 333 | |
| 334 | default: |
| 335 | echo "<td class='$column_name column-$column_name'$style>"; |
| 336 | do_action( 'manage_sites_custom_column', $column_name, $blog['blog_id'] ); |
| 337 | echo "</td>"; |
| 338 | break; |