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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 |
|---|---|
| 84 | break; |
| 85 | case 'show': |
| 86 | default: |
| 87 | ?> |
| 88 | <h3><?php _e( 'Database Upgrade Required' ); ?></h3> |
| 89 | <p><?php _e( 'WordPress has been updated! Before we send you on your way, we need to individually upgrade the sites in your network.' ); ?></p> |
| 90 | <p><?php _e( 'The upgrade process may take a little while, so please be patient.' ); ?></p> |
| 91 | <p><a class="button" href="upgrade.php?action=upgrade"><?php _e( 'Upgrade Network' ); ?></a></p> |
| 92 | <?php |
| 93 | do_action( 'wpmu_upgrade_page' ); |
| 94 | break; |
| 95 | } |
| 96 | ?> |
| 97 | </div> |
| 98 | |
| 99 | <?php include('../admin-footer.php'); ?> |
| 100 | |