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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 |
---|---|
3795 | $excerpt_length = intval( _x( '55', 'excerpt_length' ) ); |
3796 |
|
3797 | /** |
3798 | * Filters the maximum number of words in a post excerpt. |
3799 | * |
3800 | * @since 2.7.0 |
3801 | * |
3802 | * @param int $number The maximum number of words. Default 55. |
3803 | */ |
3804 | $excerpt_length = (int) apply_filters( 'excerpt_length', $excerpt_length ); |
3805 |
|
3806 | /** |
3807 | * Filters the string in the "more" link displayed after a trimmed excerpt. |
3808 | * |
3809 | * @since 2.9.0 |
3810 | * |
3811 | * @param string $more_string The string shown within the more link. |
3812 | */ |
3813 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |