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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 |
|---|---|
| 1977 | $r .= $numposts; |
| 1978 | $r .= '</a>'; |
| 1979 | } else { |
| 1980 | $r .= 0; |
| 1981 | } |
| 1982 | $r .= "</td>"; |
| 1983 | break; |
| 1984 | default: |
| 1985 | $r .= "<td $attributes>"; |
| 1986 | $r .= apply_filters('manage_users_custom_column', '', $column_name, $user_object->ID); |
| 1987 | $r .= "</td>"; |
| 1988 | } |
| 1989 | } |
| 1990 | $r .= '</tr>'; |
| 1991 | |
| 1992 | return $r; |
| 1993 | } |
| 1994 | |
| 1995 | /** |