就像这样,多个条件检索怎么做,求大神指点
回复内容:
就像这样,多个条件检索怎么做,求大神指点
直接上代码:
<code>$query = []; $valid = ['type', 'area', 'year', 'person']; // 有效的查询Key:类型/地区/年代/明星 foreach($_GET AS $queryName) { // 查询全部时,直接忽略该条件 if( ($_GET[$queryName] !== 'all') && in_array($queryName, $valid) ) { $query[$queryName] = $_GET[$queryName]; } } $where = count($query) ? 'WHERE '.implode(',', $query) : ''; $result = $db->query("SELECT * FROM tableName {$where}"); </code>
这些条件就是一个分类啊。
各种分类下的交集就好了。
mysql下用where语句就好,用and连接
拼接sql语句的活。设置一个数组$search,保存提交过来的条件值,比如$search['type']=$_GET['type'],把每个条件都赋值一次。在拼接sql之前在对每个条件进行判断,比如if($search['type']) $query .= ' AND type=?';$bind[] = $search['type'];
当条件不为空时拼接sql,否则就不拼接。

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