[wp-trac] [WordPress Trac] #64130: Type error in /wp-includes/class-wpdb.php

[WordPress Trac]

#64130: Type error in /wp-includes/class-wpdb.php
--------------------------+-----------------------------
 Reporter:  joehorntw     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Database      |    Version:  6.8.3
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 Hello,

 I find an error message in my wordpress site.

 {{{
 TypeError:mysqli_num_fields(): Argument #1 ($result) must be of type
 mysqli_result, false given

 #0 /wp-includes/class-wpdb.php(3863): mysqli_num_fields
 #1 /wp-includes/class-wpdb.php(3863): wpdb::load_col_info
 #2 /wp-includes/class-wpdb.php(786): wpdb::__get
 ...
 }}}

 I think there should be a type check before callint mysqli_num_fields(),
 such as:
 {{{#!php
 <?php
         protected function load_col_info() {
                 if ( $this->col_info || !is_object( $this->result ) ) {
                         return;
                 }

                 $num_fields = mysqli_num_fields( $this->result );

                 for ( $i = 0; $i < $num_fields; $i++ ) {
                         $this->col_info[ $i ] = mysqli_fetch_field(
 $this->result );
                 }
         }
 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64130>
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