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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 |