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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 |
---|---|
4954 | * @since 5.1.0 |
4955 | * |
4956 | * @param string|null $override_slug Short-circuit return value. |
4957 | * @param string $slug The desired slug (post_name). |
4958 | * @param int $post_ID Post ID. |
4959 | * @param string $post_status The post status. |
4960 | * @param string $post_type Post type. |
4961 | * @param int $post_parent Post parent ID. |
4962 | */ |
4963 | $override_slug = apply_filters( 'pre_wp_unique_post_slug', null, $slug, $post_ID, $post_status, $post_type, $post_parent ); |
4964 | if ( null !== $override_slug ) { |
4965 | return $override_slug; |
4966 | } |
4967 |
|
4968 | global $wpdb, $wp_rewrite; |
4969 |
|
4970 | $original_slug = $slug; |
4971 |
|
4972 | $feeds = $wp_rewrite->feeds; |