sql - Mysql Query for multi Condition -


i trying make query this:

$query= "select a.virtuemart_category_id,     a.virtuemart_product_id,     b.product_name,     b.product_desc,     c.product_price,     d.virtuemart_media_id,     e.file_url       wgny6_virtuemart_product_categories     left join wgny6_virtuemart_products_en_gb b            on a.virtuemart_product_id = b.virtuemart_product_id     left join wgny6_virtuemart_product_prices c            on b.virtuemart_product_id = c.virtuemart_product_id     left join wgny6_virtuemart_product_medias d            on b.virtuemart_product_id = d.virtuemart_product_id     left join wgny6_virtuemart_medias e            on d.virtuemart_media_id = e.virtuemart_media_id      b.product_name not null";

but want happen if a.virtuemart_category_id= $id. can't figure out how add condition.

simply put condition

 , a.virtuemart_category_id = $id

at end of query.

i.e.

select a.virtuemart_category_id,a.virtuemart_product_id,b.product_name,b.product_desc, c.product_price,d.virtuemart_media_id,e.file_url      wgny6_virtuemart_product_categories        left join wgny6_virtuemart_products_en_gb b on a.virtuemart_product_id=b.virtuemart_product_id        left join  wgny6_virtuemart_product_prices c on b.virtuemart_product_id=c.virtuemart_product_id        left join wgny6_virtuemart_product_medias d on b.virtuemart_product_id=d.virtuemart_product_id        left join wgny6_virtuemart_medias e on d.virtuemart_media_id=e.virtuemart_media_id    b.product_name not null , a.virtuemart_category_id = $id

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