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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 |
|---|---|
| 1381 | function wp_mediaelement_fallback( $url ) { |
| 1382 | /** |
| 1383 | * Filter the Mediaelement fallback output for no-JS. |
| 1384 | * |
| 1385 | * @since 3.6.0 |
| 1386 | * |
| 1387 | * @param string $output Fallback output for no-JS. |
| 1388 | * @param string $url Media file URL. |
| 1389 | */ |
| 1390 | return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url ); |
| 1391 | } |
| 1392 | |
| 1393 | /** |
| 1394 | * Return a filtered list of WP-supported audio formats. |
| 1395 | * |
| 1396 | * @since 3.6.0 |
| 1397 | * @return array |
| 1398 | */ |
| 1399 | function wp_get_audio_extensions() { |