[wp-trac] [WordPress Trac] #51986: PHP Warning: array_intersect_key(): Expected parameter 1 to be an array, string given in class-wp-rest-server.php

[WordPress Trac]

#51986: PHP Warning: array_intersect_key(): Expected parameter 1 to be an array,
string given in class-wp-rest-server.php
-------------------------------+------------------------------
 Reporter:  slaFFik            |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Editor             |     Version:  5.6
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:  rest-api
-------------------------------+------------------------------

Comment (by apermo):

 I have the same issue.

 I've already posted some information here:
 https://wordpress.org/support/topic/wordpress-5-6-upgrading-
 issue/#post-13765662

 I have the same issue, among my active plugins is redux, and quite a long
 list of custom plugins.

 Warning: array_intersect_key(): Expected parameter 1 to be an array,
 string given in /wp-includes/rest-api/class-wp-rest-server.php on line
 1402

 Call Stack
 #       Time    Memory  Function        Location
 1       0.0109  488824  {main}( )       .../post.php:0
 2       3.6107  69597144        require( '/wp-admin/edit-form-blocks.php'
 )     .../post.php:187
 3       3.6108  69600920        array_reduce ( )        .../edit-form-
 blocks.php:82
 4       3.6108  69600920        rest_preload_api_request( )     .../edit-
 form-blocks.php:82
 5       3.6108  69601520        rest_do_request( )      .../rest-
 api.php:2520
 6       3.6820  71674264        WP_REST_Server->dispatch( )  .../rest-
 api.php:479
 7       3.6858  71732896        WP_REST_Server->respond_to_request( )
 .../class-wp-rest-server.php:1007
 8       3.6858  71732896        WP_REST_Server->get_index( ) .../class-
 wp-rest-server.php:1160
 9       3.6900  72029472        WP_REST_Server->get_data_for_routes( )
 .../class-wp-rest-server.php:1243
 10      3.6909  72042136        WP_REST_Server->get_data_for_route( )
 .../class-wp-rest-server.php:1324
 11      3.7373  72049584        array_intersect_key ( ) .../class-wp-rest-
 server.php:1402


 For testing I edited the code of class-wp-rest-server.php to:

 foreach ( $callback['args'] as $key => $opts ) {
                                         if ( ! is_array( $opts ) ) {

                                                 print_r(
 $callback['args'] );
                                                 echo "\n";
                                                 print_r(  $opts );
                                                 echo "\n\n";
                                         }
                                         $arg_data             =
 @array_intersect_key( $opts, $allowed_schema_keywords );
                                         $arg_data['required'] = ! empty(
 $opts['required'] );

                                         $endpoint_data['args'][ $key ] =
 $arg_data;
                                 }


 Giving me debug information which lead me to redux-framework/redux-
 templates/classes.class-api.php and the class method register_api_hooks in
 line 785 of that file where all of these are registered.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/51986#comment:2>
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