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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 |
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40 |
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41 | /** |
42 | * Filters the sitemap provider before it is added. |
43 | * |
44 | * @since 5.5.0 |
45 | * |
46 | * @param WP_Sitemaps_Provider $provider Instance of a WP_Sitemaps_Provider. |
47 | * @param string $name Name of the sitemap provider. |
48 | */ |
49 | $provider = apply_filters( 'wp_sitemaps_add_provider', $provider, $name ); |
50 | if ( ! $provider instanceof WP_Sitemaps_Provider ) { |
51 | return false; |
52 | } |
53 |
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54 | $this->providers[ $name ] = $provider; |
55 |
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56 | return true; |
57 | } |
58 |
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