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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 |
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154 | unset( $login_header_url, $login_header_title ); |
155 |
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156 | /** |
157 | * Filter the message to display above the login form. |
158 | * |
159 | * @since 2.1.0 |
160 | * |
161 | * @param string $message Login message text. |
162 | */ |
163 | $message = apply_filters( 'login_message', $message ); |
164 | if ( !empty( $message ) ) |
165 | echo $message . "\n"; |
166 |
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167 | // In case a plugin uses $error rather than the $wp_errors object |
168 | if ( !empty( $error ) ) { |
169 | $wp_error->add('error', $error); |
170 | unset($error); |
171 | } |
172 |
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