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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 163 | extract($args); |
| 164 | |
| 165 | @set_time_limit( 300 ); |
| 166 | |
| 167 | if ( empty($source) || empty($destination) ) |
| 168 | return new WP_Error('bad_request', $this->strings['bad_request']); |
| 169 | |
| 170 | $this->skin->feedback('installing_package'); |
| 171 | |
| 172 | $res = apply_filters('upgrader_pre_install', true, $hook_extra); |
| 173 | if ( is_wp_error($res) ) |
| 174 | return $res; |
| 175 | |
| 176 | //Retain the Original source and destinations |
| 177 | $remote_source = $source; |
| 178 | $local_destination = $destination; |
| 179 | |
| 180 | $source_files = array_keys( $wp_filesystem->dirlist($remote_source) ); |
| 181 | $remote_destination = $wp_filesystem->find_folder($local_destination); |