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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 |
---|---|
3192 | * @since 3.6.0 |
3193 | * |
3194 | * @see wp_video_shortcode() |
3195 | * |
3196 | * @param string $html Empty variable to be replaced with shortcode markup. |
3197 | * @param array $attr Attributes of the shortcode. @see wp_video_shortcode() |
3198 | * @param string $content Video shortcode content. |
3199 | * @param int $instance Unique numeric ID of this video shortcode instance. |
3200 | */ |
3201 | $override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance ); |
3202 |
|
3203 | if ( '' !== $override ) { |
3204 | return $override; |
3205 | } |
3206 |
|
3207 | $video = null; |
3208 |
|
3209 | $default_types = wp_get_video_extensions(); |
3210 | $defaults_atts = array( |