How to query custom post tye from specific category - wordpress

Question

i need to display post from a custom post type but from one specific category, i use the code belowe but show me all post from all categories not just from 7.
<?php
$args = array( 'post_type' => 'tour', 'posts_per_page' => 10, 'cat=7' , 'taxonomy' => 'tourcat');
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();
echo "TEST TEST TEST TEST";
echo the_title();
echo '<div class="entry-content">';
the_content();
echo '</div>';
endwhile;
?>

Answer 1

This is not a valid argument for WP Query.
cat=7
Please read here about taxonomy queries, they should do what you require:
https://codex.wordpress.org/Class_Reference/WP_Query#Taxonomy_Parameters

Answer 2

Currently your $args array simply holds an element that is cat=7, which is an incorrect way to pass arguments to the WP_Query constructor. Note that the issue is a little more obvious if you format your $args array with whitespace:
$args = array(
'post_type' => 'tour',
'posts_per_page' => 10,
'cat=7' , /* Here is the problem */
'taxonomy' => 'tourcat'
);
I believe your $args array should look like the following:
$args = array(
'post_type' => 'tour',
'posts_per_page' => 10,
'cat' => 7,
'taxonomy' => 'tourcat'
);

Answer 3

This,
$args = array( 'post_type' => 'tour', 'posts_per_page' => 10, 'cat=7' , 'taxonomy' => 'tourcat');
Should instead be like,
$args = array( 'post_type' => 'tour', 'posts_per_page' => 10, 'tax_query' => array( array( 'taxonomy' => 'tourcat','field' => 'ID','terms' => '7' ) ));

Answer 4

Try this :
$postData = new WP_Query(array(
'post_type' => 'tour', // custom post type
'posts_per_page'=>10,
'tax_query' => array(
array(
'taxonomy' => 'tourcat', //custom taxonomy name
'field' => 'id',
'terms' => 7
)
)
));
if($postData->have_posts()):
while ($postData->have_posts()): $postData->the_post();
echo "TEST TEST TEST TEST";
the_title();
echo '<div class="entry-content">';
the_content();
echo '</div>';
endwhile;
endif;