WordPress Meta Query with Multi Value Arrays - wordpress

Question

I have the following query that I would like to pass an array of values to:
$data = get_posts( array(
'post_type' => 'custom_type',
'post_status' => 'any',
'posts_per_page' => 200,
'meta_query' => array(
array(
'key' => '_customer_names',
'value' => $customer_names,
'compare' => '='
),
array(
'key' => '_customer_dates',
'value' => $customer_dates,
'compare' => 'LIKE'
)
)
)
);
For example, I would like to pass like this:
$customer_names = array('John','Tom', 'Simon');
$customer_dates = array('20161225', '20161225', '20161225');
The query will also need to handle the possibility that all customers could have data for each date. In pseudo SQL, my best guess would be:
SELECT * FROM WORDPRESS_POSTS WHERE _customer_names = (John OR Tom OR Simon) AND customer_dates = (20161225 OR 20161226 OR 20161227)
However, at the moment, even when I remove the date restriction, I can't find any posts. Hence, I wanted to confirm my logic is correct.

Answer 1

Try like this:
$data = get_posts( array(
'post_type' => 'custom_type',
'post_status' => 'any',
'posts_per_page' => 200,
'meta_query' => array(
'relation' => 'AND',
array(
'relation' => 'OR',
array(
'key' => '_customer_names',
'value' => 'John',
'compare' => '='
),
array(
'key' => '_customer_names',
'value' => 'Tom',
'compare' => '='
),
array(
'key' => '_customer_names',
'value' => 'Simon',
'compare' => '='
)
),
array(
'relation' => 'OR',
array(
'key' => '_customer_dates',
'value' => '20161225',
'compare' => '='
),
array(
'key' => '_customer_dates',
'value' => '20161225',
'compare' => '='
),
array(
'key' => '_customer_dates',
'value' => '20161225',
'compare' => '='
)
),
)
)
);

Answer 2

if you want to use array in values you need to use compare with IN clause.
OR if you want to match with exact values you can try #Ravendra Patel's solution.
Also use WP_QUERY because it comes with main query and provide more help to identify the issue
$customer_names = array('John', 'Tom', 'Simon');
$customer_dates = array('20161225', '20161225', '20161225');
$args = array(
'post_type' => 'custom_type',
'post_status' => 'any',
'posts_per_page' => 200,
'meta_query' => array(
array(
'key' => '_customer_names',
'value' => $customer_names,
'compare' => 'IN'
),
array(
'key' => '_customer_dates',
'value' => $customer_dates,
'compare' => 'IN'
)
)
);
$query = new WP_QUERY($args);
echo 'SQL: '.$query->request.'<br>'; // your query against args

Answer 3

try like this:
$customer_names = array('John', 'Tom', 'Simon');
$customer_dates = array('20161225', '20161225', '20161225');
$cm_metaq = array();
foreach($customer_names as $cm){
$cm_metaq[] = array('key' => '_customer_names', 'value' => $cm, 'compare' => '=');
}
$cd_metaq = array();
foreach($customer_dates as $cd){
$cd_metaq[] = array('key' => '_customer_dates', 'value' =>$cd, 'compare' => '=');
}
$data = get_posts( array(
'post_type' => 'custom_type',
'post_status' => 'any',
'posts_per_page' => 200,
'meta_query' => array(
'relation' => 'AND',
array(
'relation' => 'OR',
$cm_metaq
),
array(
'relation' => 'OR',
$cd_metaq
),
)
)
);