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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 |
---|---|
2006 | /** |
2007 | * Filter the localized date on which the post was written, for display. |
2008 | * |
2009 | * @since 0.71 |
2010 | * |
2011 | * @param string $the_weekday_date |
2012 | * @param string $before The HTML to output before the date. |
2013 | * @param string $after The HTML to output after the date. |
2014 | */ |
2015 | $the_weekday_date = apply_filters( 'the_weekday_date', $the_weekday_date, $before, $after ); |
2016 | echo $the_weekday_date; |
2017 | } |
2018 |
|
2019 | /** |
2020 | * Fire the wp_head action |
2021 | * |
2022 | * @since 1.2.0 |
2023 | */ |
2024 | function wp_head() { |