如何选择3个指示值中的1个建议值?
$req="SELECT price FROM store WHERE name IN ( 'fruits', 'vegetables','furnitures') " ;
$req_result= mysqli_query($connect,$req);
$req_rep= mysqli_fetch_array($req_result);
;echo $req_result['price'] // <--- I would like just add " WHERE name = 'fruits' "
;echo $req_result['price'] // <--- I would like just add " WHERE name = 'vegetables' "
发布于 2019-05-15 14:57:27
不确定你的意思。生成的查询应该为您提供可以循环的多个结果:
foreach($req_rep as $item) {
echo $item['price'] . '<br />';
}
这将导致打印几行价格。如果要访问水果,请将select语句更改为:
$req="SELECT price, fruits FROM store WHERE name IN ( 'fruits', 'vegetables','furnitures') " ;
从这里,您可以再次循环数据并使用$ item ['fruits']。
https://stackoverflow.com/questions/-100006727
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