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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 |
|---|---|
| 2424 | function wp_mediaelement_fallback( $url ) { |
| 2425 | /** |
| 2426 | * Filters the Mediaelement fallback output for no-JS. |
| 2427 | * |
| 2428 | * @since 3.6.0 |
| 2429 | * |
| 2430 | * @param string $output Fallback output for no-JS. |
| 2431 | * @param string $url Media file URL. |
| 2432 | */ |
| 2433 | return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url ); |
| 2434 | } |
| 2435 | |
| 2436 | /** |
| 2437 | * Returns a filtered list of supported audio formats. |
| 2438 | * |
| 2439 | * @since 3.6.0 |
| 2440 | * |
| 2441 | * @return string[] Supported audio formats. |
| 2442 | */ |