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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 |
---|---|
1316 | * |
1317 | * This hook only fires if the current post type is non-hierarchical, |
1318 | * such as posts. |
1319 | * |
1320 | * @since 1.5.0 |
1321 | * |
1322 | * @param string $column_name The name of the column to display. |
1323 | * @param int $post_id The current post ID. |
1324 | */ |
1325 | do_action( 'manage_posts_custom_column', $column_name, $post->ID ); |
1326 | } |
1327 |
|
1328 | /** |
1329 | * Fires for each custom column of a specific post type in the Posts list table. |
1330 | * |
1331 | * The dynamic portion of the hook name, `$post->post_type`, refers to the post type. |
1332 | * |
1333 | * Possible hook names include: |
1334 | * |