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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 |
---|---|
1080 | * |
1081 | * This hook only fires if the current post type is non-hierarchical, |
1082 | * such as posts. |
1083 | * |
1084 | * @since 1.5.0 |
1085 | * |
1086 | * @param string $column_name The name of the column to display. |
1087 | * @param int $post_id The current post ID. |
1088 | */ |
1089 | do_action( 'manage_posts_custom_column', $column_name, $post->ID ); |
1090 | } |
1091 |
|
1092 | /** |
1093 | * Fires for each custom column of a specific post type in the Posts list table. |
1094 | * |
1095 | * The dynamic portion of the hook name, `$post->post_type`, refers to the post type. |
1096 | * |
1097 | * @since 3.1.0 |
1098 | * |