The meta_query argument takes an array of arrays.
'meta_query' => array(
array(
'key' => 'city',
'value' => 'true',
'compare' => 'NOT LIKE',
)
)
The meta_query argument takes an array of arrays.
'meta_query' => array(
array(
'key' => 'city',
'value' => 'true',
'compare' => 'NOT LIKE',
)
)