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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 |
---|---|
3971 |
|
3972 | /* |
3973 | * Temporarily unhook wp_filter_content_tags() since any tags |
3974 | * within the excerpt are stripped out. Modifying the tags here |
3975 | * is wasteful and can lead to bugs in the image counting logic. |
3976 | */ |
3977 | $filter_removed = remove_filter( 'the_content', 'wp_filter_content_tags' ); |
3978 |
|
3979 | /** This filter is documented in wp-includes/post-template.php */ |
3980 | $text = apply_filters( 'the_content', $text ); |
3981 | $text = str_replace( ']]>', ']]>', $text ); |
3982 |
|
3983 | /** |
3984 | * Only restore the filter callback if it was removed above. The logic |
3985 | * to unhook and restore only applies on the default priority of 10, |
3986 | * which is generally used for the filter callback in WordPress core. |
3987 | */ |
3988 | if ( $filter_removed ) { |
3989 | add_filter( 'the_content', 'wp_filter_content_tags' ); |