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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 |
---|---|
440 | /** |
441 | * Filter the display output of custom columns in the Users list table. |
442 | * |
443 | * @since 2.8.0 |
444 | * |
445 | * @param string $output Custom column output. Default empty. |
446 | * @param string $column_name Column name. |
447 | * @param int $user_id ID of the currently-listed user. |
448 | */ |
449 | $r .= apply_filters( 'manage_users_custom_column', '', $column_name, $user_object->ID ); |
450 | $r .= "</td>"; |
451 | } |
452 | } |
453 | $r .= '</tr>'; |
454 |
|
455 | return $r; |
456 | } |
457 | } |
458 |
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