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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 |
---|---|
3889 | $excerpt_length = (int) _x( '55', 'excerpt_length' ); |
3890 |
|
3891 | /** |
3892 | * Filters the maximum number of words in a post excerpt. |
3893 | * |
3894 | * @since 2.7.0 |
3895 | * |
3896 | * @param int $number The maximum number of words. Default 55. |
3897 | */ |
3898 | $excerpt_length = (int) apply_filters( 'excerpt_length', $excerpt_length ); |
3899 |
|
3900 | /** |
3901 | * Filters the string in the "more" link displayed after a trimmed excerpt. |
3902 | * |
3903 | * @since 2.9.0 |
3904 | * |
3905 | * @param string $more_string The string shown within the more link. |
3906 | */ |
3907 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |