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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 |
---|---|
1557 | } |
1558 |
|
1559 | /** |
1560 | * Filter the wp_dropdown_users() HTML output. |
1561 | * |
1562 | * @since 2.3.0 |
1563 | * |
1564 | * @param string $output HTML output generated by wp_dropdown_users(). |
1565 | */ |
1566 | $html = apply_filters( 'wp_dropdown_users', $output ); |
1567 |
|
1568 | if ( $r['echo'] ) { |
1569 | echo $html; |
1570 | } |
1571 | return $html; |
1572 | } |
1573 |
|
1574 | /** |
1575 | * Sanitize user field based on context. |