请问php pdo 执行 like sql查询代码怎么写?
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<?php $pdo = new \PDO('mysql:host=localhost;dbname=guest;port=3306', 'guest', 'p6yhG8iDRMNxdJ9w'); // 第一种绑定方式 $param1 = "bfw"; $sql1 = "select * from User where username like ?"; $stmt1 = $pdo->prepare($sql1); if ($stmt1->execute([ "%$param1%", ])) { $res1 = $stmt1->fetchAll(\PDO::FETCH_ASSOC); print_r($res1); } //第二种绑定方法 $sql1 = 'SELECT * FROM User WHERE username LIKE :username'; $stmt = $pdo->prepare($sql1); $stmt->bindValue(':username','%'.$param1.'%'); $stmt->execute(); $rows = $stmt->fetchAll(); print_r($rows); // IN 查询预处理 $param2 = [2,3,4]; $prepare = rtrim( str_pad('?', 2 * count($param2), ',?') , ','); $sql2 = "select * from User where id in($prepare)"; $stmt2 = $pdo->prepare($sql2); if ($stmt2->execute($param2)) { $res2 = $stmt2->fetchAll(\PDO::FETCH_ASSOC); print_r($res2); }