php mysqli query 查询数据库后读取内容的方法
php mysqli query 查询数据库后读取内容的方法
connect_errno) { printf("Connect failed: %s\n", $mysqli->connect_error); exit();}/* Create table doesn't return a resultset */if ($mysqli->query("CREATE TEMPORARY TABLE myCity LIKE City") === TRUE) { printf("Table myCity successfully created.\n");}/* Select queries return a resultset */if ($result = $mysqli->query("SELECT Name FROM City LIMIT 10")) { printf("Select returned %d rows.\n", $result->num_rows); /* free result set */ $result->close();}/* If we have to retrieve large amount of data we use MYSQLI_USE_RESULT */if ($result = $mysqli->query("SELECT * FROM City", MYSQLI_USE_RESULT)) { /* Note, that we can't execute any functions which interact with the server until result set was closed. All calls will return an 'out of sync' error */ if (!$mysqli->query("SET @a:='this will not work'")) { printf("Error: %s\n", $mysqli->error); } $result->close();}$mysqli->close();?>
实例代码:
$sql="select * from qa limit 0,10"; $result=$mysqli->query($sql); while ($row = mysqli_fetch_assoc($result)) { echo "question_title : {$row['question_title']}
"; echo "answer_content1: {$row['answer_content1']}
"; } /* free result set */ $result->close();
参考文档:http://www.php.net/manual/en/mysqli.query.php
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