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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 |
---|---|
217 | } |
218 | if ( ! empty( $errors ) ) { |
219 | /** |
220 | * Filters the error messages displayed above the login form. |
221 | * |
222 | * @since 2.1.0 |
223 | * |
224 | * @param string $errors Login error message. |
225 | */ |
226 | echo '<div id="login_error">' . apply_filters( 'login_errors', $errors ) . "</div>\n"; |
227 | } |
228 | if ( ! empty( $messages ) ) { |
229 | /** |
230 | * Filters instructional messages displayed above the login form. |
231 | * |
232 | * @since 2.5.0 |
233 | * |
234 | * @param string $messages Login messages. |
235 | */ |