让PHP搜索一切

Question

我想知道如何在搜索数据库中搜索更多表以包含城市和搜索。城市和搜索已经在我的数据库中，我需要做的就是搜索它们，但我不知道如何。

这是我到目前为止有：

//explode out search term 
$search_exploded = explode(" ",$search); 

foreach($search_exploded as $search_each) { 

//construct query 
$x++; 
if ($x==1) 
    $construct .= " keywords LIKE '%$search_each%'"; 
else 
    $construct .= " OR keywords LIKE '%$search_each%'"; 
} 

Answer 1

更改代码：

foreach($search_exploded as $search_each) { 
    //construct query 
    $x++; 

    if ($x==1) 
     $construct .= " keywords LIKE 
      '%$search_each%' OR city LIKE '%$search_each%' or state LIKE 
      '%search_each%'"; 
    else 
     $construct .= " OR keywords LIKE 
      '%$search_each%' OR city LIKE 
      '%$search_each%' or state LIKE '%search_each%'"; 
}