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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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1811 |
|
1812 | /** |
1813 | * Filter the class attribute for the video shortcode output container. |
1814 | * |
1815 | * @since 3.6.0 |
1816 | * |
1817 | * @param string $class CSS class or list of space-separated classes. |
1818 | */ |
1819 | $html_atts = array( |
1820 | 'class' => apply_filters( 'wp_video_shortcode_class', 'wp-video-shortcode' ), |
1821 | 'id' => sprintf( 'video-%d-%d', $post_id, $instances ), |
1822 | 'width' => absint( $atts['width'] ), |
1823 | 'height' => absint( $atts['height'] ), |
1824 | 'poster' => esc_url( $atts['poster'] ), |
1825 | 'loop' => $atts['loop'], |
1826 | 'autoplay' => $atts['autoplay'], |
1827 | 'preload' => $atts['preload'], |
1828 | ); |
1829 |
|