Home Forums Bug Reports ACF Pro 5.7.11 + Simple History 2.29.1 not working together


ACF Pro 5.7.11 + Simple History 2.29.1 not working together

  • Hi guys,

    Looks like since upgrading to 5.7.11 I’m getting an issue if I have the Simple History plugin active.

    I’ve also seen this issue recently logged on simple history here 11 hours ago:

    Specifically the steps to replicate for me are to update a date/time field on a page and try and publish. This results in a 500 error but the page actually saves the changes.

    The logs show this error:

    AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Error: Call to undefined function _acf_get_field_by_id() in /httpdocs/wp-content/plugins/simple-history/loggers/Plugin_ACF.php:374\nStack trace:\n#0 /httpdocs/wp-content/plugins/simple-history/loggers/Plugin_ACF.php(271): Plugin_ACF->add_acf_context(Array, 'changed', Array, Array, Array, Array)\n#1 /httpdocs/wp-includes/class-wp-hook.php(286): Plugin_ACF->on_acf_save_post(174)\n#2 /httpdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)\n#3 /httpdocs/wp-includes/plugin.php(453): WP_Hook->do_action(Array)\n#4 /httpdocs/wp-content/plugins/advanced-custom-fields-pro/includes/acf-form-functions.php(136): do_action('acf/save_post', 174)\n#5 /httpdocs/wp-content/plu...\n', referer:

  • Same with ACF PRO 5.7.12

    Call to undefined function _acf_get_field_by_id() in /plugins/simple-history/loggers/Plugin_ACF.php

    disabling the logger for now.

  • Having a similar issue here as well.

    Error thrown

    Call to undefined function _acf_get_field_by_id()

  • I had a similar issue with another plugin. It seems there have been some changes in ACF that will require attention by the developer of the other plugin and you’ll probably want to contact them about it. Most of the changes causing this issue are do to the removal or renaming of some internal functions that other developers may have been using.

  • On /wp-content/plugins/simple-history/loggers/Plugin_ACF.php line 374 you have the following:

    $parent_field = _acf_get_field_by_id( $parent_field['parent'] );

    It seems that function no longer exists in ACF.

  • So, I did a little digging into this and it seems that in version 5.7.11/12 ACF decided to deprecate the function called “_acf_get_field_by_id”. However, in the /advanced-custom-fields-pro/includes/acf-deprecated-functions.php line 57 the function is called “_acf_get_fields_by_id” (Note “fields” in plural) and that seems to be breaking resources that are still using the deprecated _acf_get_field_by_id, due to a typo/misspelling of the function?

    ACF, any input on this?

  • Just for the record, I renamed the deprecated function to “_acf_get_field_by_id” back to singular “field” and Simple History is now working without throwing the error.

  • I have already done and I have been corresponding with Kenny.

  • For a fix with the coexistence with Simple History please refer to

    However, I still don’t understand why ACF changed the function name when deprecating it.

  • This is now fixed in the latest version of Simple History.

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