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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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41 |
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42 | /** |
43 | * Filters the sitemap provider before it is added. |
44 | * |
45 | * @since 5.5.0 |
46 | * |
47 | * @param WP_Sitemaps_Provider $provider Instance of a WP_Sitemaps_Provider. |
48 | * @param string $name Name of the sitemap provider. |
49 | */ |
50 | $provider = apply_filters( 'wp_sitemaps_add_provider', $provider, $name ); |
51 | if ( ! $provider instanceof WP_Sitemaps_Provider ) { |
52 | return false; |
53 | } |
54 |
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55 | $this->providers[ $name ] = $provider; |
56 |
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57 | return true; |
58 | } |
59 |
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