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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 |
|---|---|
| 3827 | * Filters the human readable difference between two timestamps. |
| 3828 | * |
| 3829 | * @since 4.0.0 |
| 3830 | * |
| 3831 | * @param string $since The difference in human readable text. |
| 3832 | * @param int $diff The difference in seconds. |
| 3833 | * @param int $from Unix timestamp from which the difference begins. |
| 3834 | * @param int $to Unix timestamp to end the time difference. |
| 3835 | */ |
| 3836 | return apply_filters( 'human_time_diff', $since, $diff, $from, $to ); |
| 3837 | } |
| 3838 | |
| 3839 | /** |
| 3840 | * Generates an excerpt from the content, if needed. |
| 3841 | * |
| 3842 | * Returns a maximum of 55 words with an ellipsis appended if necessary. |
| 3843 | * |
| 3844 | * The 55 word limit can be modified by plugins/themes using the {@see 'excerpt_length'} filter |
| 3845 | * The ' […]' string can be modified by plugins/themes using the {@see 'excerpt_more'} filter |