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link_title

Filters the OPML outline link title text.

url_to_postid

Filters the URL to derive the post ID from.

the_comment

Iterate comment index in the comment loop.

have_comments

Whether there are comments to loop over.

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phpmailer_init

Fires after PHPMailer is initialized.

wp_mail_from

Filters the email address to send from.

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wp_load_alloptions

Loads and caches all autoloaded options, if available or all options.

user_trailingslashit

Filters the trailing-slashed string, depending on whether the site is set to use trailing slashes.

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user_trailingslashit

Retrieves a trailing-slashed string if the site is set for adding trailing slashes.

ngettext

Filters the singular or plural form of a string.

translate

Retrieve the translation of $text.