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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 |
---|---|
1417 | function wp_mediaelement_fallback( $url ) { |
1418 | /** |
1419 | * Filter the Mediaelement fallback output for no-JS. |
1420 | * |
1421 | * @since 3.6.0 |
1422 | * |
1423 | * @param string $output Fallback output for no-JS. |
1424 | * @param string $url Media file URL. |
1425 | */ |
1426 | return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url ); |
1427 | } |
1428 |
|
1429 | /** |
1430 | * Return a filtered list of WP-supported audio formats. |
1431 | * |
1432 | * @since 3.6.0 |
1433 | * @return array |
1434 | */ |
1435 | function wp_get_audio_extensions() { |