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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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122 | $output .= $args['before_title'] . $title . $args['after_title']; |
123 | } |
124 |
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125 | $recent_comments_id = ( $first_instance ) ? 'recentcomments' : "recentcomments-{$this->number}"; |
126 | $first_instance = false; |
127 |
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128 | $format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml'; |
129 |
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130 | /** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */ |
131 | $format = apply_filters( 'navigation_widgets_format', $format ); |
132 |
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133 | if ( 'html5' === $format ) { |
134 | // The title may be filtered: Strip out HTML and make sure the aria-label is never empty. |
135 | $title = trim( strip_tags( $title ) ); |
136 | $aria_label = $title ? $title : $default_title; |
137 | $output .= '<nav aria-label="' . esc_attr( $aria_label ) . '">'; |
138 | } |
139 |
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140 | $output .= '<ul id="' . esc_attr( $recent_comments_id ) . '">'; |