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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 |
|---|---|
| 818 | * {@internal Missing Short Description}} |
| 819 | * |
| 820 | * @since 2.5.0 |
| 821 | * |
| 822 | * @return unknown |
| 823 | */ |
| 824 | function wp_max_upload_size() { |
| 825 | $u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) ); |
| 826 | $p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) ); |
| 827 | $bytes = apply_filters( 'upload_size_limit', min($u_bytes, $p_bytes), $u_bytes, $p_bytes ); |
| 828 | return $bytes; |
| 829 | } |
| 830 | |
| 831 | /** |
| 832 | * Outputs the form used by the importers to accept the data to be imported |
| 833 | * |
| 834 | * @since 2.0.0 |
| 835 | * |
| 836 | * @param string $action The action attribute for the form. |