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soderlind/anonymize-comment-ip.php

Last active May 20, 2018 05:02
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GDPR: Anonymize WordPress user IP address in comments, supports IP4 and IP6
Raw
anonymize-comment-ip.php
<?php
if ( true == apply_filters( 'is_gdpr', true ) ) {
add_filter( 'pre_comment_user_ip', function( $ip ) {
$packed_in_addr = inet_pton( $ip );
if ( 4 == strlen( $packed_in_addr ) ) {
return inet_ntop( inet_pton( $ip ) & inet_pton( '255.255.0.0' ) );
} else {
return inet_ntop( inet_pton( $ip ) & inet_pton( 'ffff:ffff:ffff:ffff:0000:0000:0000:0000' ) );
}
} );
}
Raw
ip4-anonymize-comment-ip.php
<?php
add_filter( 'pre_comment_user_ip', function( $ip ) {
return inet_ntop( inet_pton( $ip ) & inet_pton( '255.255.0.0' ) ); // return an IP address in the form of nnn.nnn.0.0
} );
Raw
wp-anonymize-comment-ip.php
<?php
// using the new wp_privacy_anonymize_ip function, available in WordPress 4.9.6
if ( function_exists( 'wp_privacy_anonymize_ip' ) ) {
add_filter( 'pre_comment_user_ip', function( $ip ) {
return wp_privacy_anonymize_ip( $ip );
}
}
@soderlind
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Note, doesn't fix existing user IP for existing comments. Backup your database and run something like this on it:
UPDATE 'wp_comments' SET 'comment_author_IP' = '';

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