[Auto sync ACF json] #wordpress #ACF

sample.php

//Auto sync from loaded JSON
function sync_acf_fields() {
  
  $groups = acf_get_field_groups();
  $sync   = array();

  // bail early if no field groups
  if( empty( $groups ) )
    return;

  // find JSON field groups which have not yet been imported
  foreach( $groups as $group ) {
    
    // vars
    $local    = acf_maybe_get( $group, 'local', false );
    $modified = acf_maybe_get( $group, 'modified', 0 );
    $private  = acf_maybe_get( $group, 'private', false );
    
    // ignore DB / PHP / private field groups
    if( $local !== 'json' || $private ) {
      // do nothing
    } elseif( ! $group[ 'ID' ] ) {
      $sync[ $group[ 'key' ] ] = $group;
    } elseif( $modified && $modified > get_post_modified_time( 'U', true, $group[ 'ID' ], true ) ) {
      $sync[ $group[ 'key' ] ]  = $group;
    }
  }

  // bail if no sync needed
  if( empty( $sync ) )
    return;

  if( ! empty( $sync ) ) { //if( ! empty( $keys ) ) {
    $new_ids = array();
    foreach( $sync as $key => $v ) { //foreach( $keys as $key ) {
      // append fields
      if( acf_have_local_fields( $key ) ) {
        $sync[ $key ][ 'fields' ] = acf_get_local_fields( $key );
      }
      // import
      $field_group = acf_import_field_group( $sync[ $key ] );
    }
  }
}
add_action( 'admin_init', 'sync_acf_fields' );