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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 |
---|---|
116 | * @since 2.1.0 |
117 | */ |
118 | do_action( "admin_head-$hook_suffix" ); |
119 |
|
120 | /** |
121 | * Fires in head section for all admin pages. |
122 | * |
123 | * @since 2.1.0 |
124 | */ |
125 | do_action( 'admin_head' ); |
126 |
|
127 | if ( get_user_setting('mfold') == 'f' ) |
128 | $admin_body_class .= ' folded'; |
129 |
|
130 | if ( !get_user_setting('unfold') ) |
131 | $admin_body_class .= ' auto-fold'; |
132 |
|
133 | if ( is_admin_bar_showing() ) |
134 | $admin_body_class .= ' admin-bar'; |