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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 |
|---|---|
| 1806 | |
| 1807 | /** |
| 1808 | * Filter the uploads directory data. |
| 1809 | * |
| 1810 | * @since 2.0.0 |
| 1811 | * |
| 1812 | * @param array $uploads Array of upload directory data with keys of 'path', |
| 1813 | * 'url', 'subdir, 'basedir', and 'error'. |
| 1814 | */ |
| 1815 | $uploads = apply_filters( 'upload_dir', |
| 1816 | array( |
| 1817 | 'path' => $dir, |
| 1818 | 'url' => $url, |
| 1819 | 'subdir' => $subdir, |
| 1820 | 'basedir' => $basedir, |
| 1821 | 'baseurl' => $baseurl, |
| 1822 | 'error' => false, |
| 1823 | ) ); |
| 1824 | |