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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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2204 | * If the filtered output isn't empty, it will be used instead of generating the default audio template. |
2205 | * |
2206 | * @since 3.6.0 |
2207 | * |
2208 | * @param string $html Empty variable to be replaced with shortcode markup. |
2209 | * @param array $attr Attributes of the shortcode. @see wp_audio_shortcode() |
2210 | * @param string $content Shortcode content. |
2211 | * @param int $instance Unique numeric ID of this audio shortcode instance. |
2212 | */ |
2213 | $override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instance ); |
2214 | if ( '' !== $override ) { |
2215 | return $override; |
2216 | } |
2217 |
|
2218 | $audio = null; |
2219 |
|
2220 | $default_types = wp_get_audio_extensions(); |
2221 | $defaults_atts = array( |
2222 | 'src' => '', |