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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 |
---|---|
1780 | * |
1781 | * The dynamic portion of the hook name, `$field`, refers to the prefixed user |
1782 | * field being filtered, such as 'user_login', 'user_email', 'first_name', etc. |
1783 | * |
1784 | * @since 2.9.0 |
1785 | * |
1786 | * @param mixed $value Value of the prefixed user field. |
1787 | * @param int $user_id User ID. |
1788 | */ |
1789 | $value = apply_filters( "edit_user_{$field}", $value, $user_id ); |
1790 | } |
1791 |
|
1792 | if ( 'description' === $field ) { |
1793 | $value = esc_html( $value ); // textarea_escaped? |
1794 | } else { |
1795 | $value = esc_attr( $value ); |
1796 | } |
1797 | } elseif ( 'db' === $context ) { |
1798 | if ( $prefixed ) { |