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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 |
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1939 |
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1940 | /** |
1941 | * Filters the comment moderation email headers. |
1942 | * |
1943 | * @since 2.8.0 |
1944 | * |
1945 | * @param string $message_headers Headers for the comment moderation email. |
1946 | * @param int $comment_id Comment ID. |
1947 | */ |
1948 | $message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id ); |
1949 |
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1950 | foreach ( $emails as $email ) { |
1951 | wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); |
1952 | } |
1953 |
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1954 | if ( $switched_locale ) { |
1955 | restore_previous_locale(); |
1956 | } |
1957 |
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