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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 |
---|---|
2053 | function wp_mediaelement_fallback( $url ) { |
2054 | /** |
2055 | * Filter the Mediaelement fallback output for no-JS. |
2056 | * |
2057 | * @since 3.6.0 |
2058 | * |
2059 | * @param string $output Fallback output for no-JS. |
2060 | * @param string $url Media file URL. |
2061 | */ |
2062 | return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url ); |
2063 | } |
2064 |
|
2065 | /** |
2066 | * Returns a filtered list of WP-supported audio formats. |
2067 | * |
2068 | * @since 3.6.0 |
2069 | * |
2070 | * @return array Supported audio formats. |
2071 | */ |