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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 |
|---|---|
| 540 | $user->ID = (int) $user->ID; |
| 541 | $_selected = $user->ID == $selected ? " selected='selected'" : ''; |
| 542 | $display = !empty($user->$show) ? $user->$show : '('. $user->user_login . ')'; |
| 543 | $output .= "\t<option value='$user->ID'$_selected>" . esc_html($display) . "</option>\n"; |
| 544 | } |
| 545 | |
| 546 | $output .= "</select>"; |
| 547 | } |
| 548 | |
| 549 | $output = apply_filters('wp_dropdown_users', $output); |
| 550 | |
| 551 | if ( $echo ) |
| 552 | echo $output; |
| 553 | |
| 554 | return $output; |
| 555 | } |
| 556 | |
| 557 | /** |
| 558 | * Add user meta data as properties to given user object. |