MySql LIKE不工作

Question

LIKE不工作，當我搜索'新德里'，但是當我搜索諾伊達它工作正常。 String有空間時如何使用LIKE。

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

Answer 1

你缺少的單引號包圍的字符串：圍繞搜索條件

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

Answer 2

缺少引號

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

或

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