I want to know how do they do a query with only one textbox in the page, but the current text in the text box can be used as a parameter for the query. I'm currently using the query below but I don't think I'm getting the desired results, is there anything wrong with my query?
$result1=query_database("SELECT * FROM prod_table WHERE CATEGORY LIKE '$cuts%' OR PRODUCT LIKE '$cuts%' OR P_DESC LIKE '$cuts%' ", "onstor", $link);
?>
<?php
if(mysql_num_rows($result1)==0){
}else{
How to do this kind of query better.
如果query_database
不是您定义的
mysql_query("SELECT * FROM prod_table WHERE CATEGORY LIKE '$cuts%' OR PRODUCT LIKE '$cuts%' OR P_DESC LIKE '$cuts%' ", "onstor", $link);
Add indexes for each of the 3 fields, CATEGORY,PRODUCT,P_DESC and it should run much faster.
Are you sure that LIKE '$cuts%' is correct? I believe that it should be LIKE '%$cuts%'. In the way that you have written it, it will only find the products which start with the value of the $cuts
在 $cut 之前使用 % 并转义此查询很好
$result1=query_database("SELECT * FROM prod_table WHERE CATEGORY LIKE '%$cuts%' OR PRODUCT LIKE '%$cuts%' OR P_DESC LIKE '%$cuts%' ", "onstor", $link);
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