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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 |
|---|---|
| 2230 | function wp_mediaelement_fallback( $url ) { |
| 2231 | /** |
| 2232 | * Filters the Mediaelement fallback output for no-JS. |
| 2233 | * |
| 2234 | * @since 3.6.0 |
| 2235 | * |
| 2236 | * @param string $output Fallback output for no-JS. |
| 2237 | * @param string $url Media file URL. |
| 2238 | */ |
| 2239 | return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url ); |
| 2240 | } |
| 2241 | |
| 2242 | /** |
| 2243 | * Returns a filtered list of WP-supported audio formats. |
| 2244 | * |
| 2245 | * @since 3.6.0 |
| 2246 | * |
| 2247 | * @return array Supported audio formats. |
| 2248 | */ |