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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 |
---|---|
1063 | * @since 1.2.0 |
1064 | * @access private |
1065 | */ |
1066 | function shutdown_action_hook() { |
1067 | /** |
1068 | * Fires just before PHP shuts down execution. |
1069 | * |
1070 | * @since 1.2.0 |
1071 | */ |
1072 | do_action( 'shutdown' ); |
1073 |
|
1074 | wp_cache_close(); |
1075 | } |
1076 |
|
1077 | /** |
1078 | * Copy an object. |
1079 | * |
1080 | * @since 2.7.0 |
1081 | * @deprecated 3.2.0 |