MySql LIKE无法正常工作

Question

当我搜索'新德里'时不工作但是当我搜索诺伊达时，它工作正常。当String有空格时如何使用LIKE。

$area = $_REQUEST('area');
$sql = "SELECT * from Student_registration WHERE area LIKE %".$area."%";

Answer 1

搜索条件周围缺少引号

"SELECT * from Student_registration WHERE area LIKE '%". $area."%'";

或

"SELECT * from Student_registration WHERE area LIKE concat('%', '" .$area. ",'%'";

Answer 2

您缺少围绕字符串的单引号：

$sql = "SELECT * from Student_registration WHERE area LIKE '%".$area."%'";