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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 |
|---|---|
| 307 | $r .= $numposts; |
| 308 | $r .= '</a>'; |
| 309 | } else { |
| 310 | $r .= 0; |
| 311 | } |
| 312 | $r .= "</td>"; |
| 313 | break; |
| 314 | default: |
| 315 | $r .= "<td $attributes>"; |
| 316 | $r .= apply_filters( 'manage_users_custom_column', '', $column_name, $user_object->ID ); |
| 317 | $r .= "</td>"; |
| 318 | } |
| 319 | } |
| 320 | $r .= '</tr>'; |
| 321 | |
| 322 | return $r; |
| 323 | } |
| 324 | } |
| 325 | |