中给出的字符串我得到了标题中提到的警告,我的代码在这里:Warning:mysqli_select_db )期望参数1到上线在 /CDC/slider.php给定库MySQLi,串3我得到了在标题中提到的警告,我的代码在这里:警告:mysqli_select_db()期望参数1是mysqli,在
slider.php
<?php require_once('db/dbcon.php'); ?>
<?php mysqli_select_db($database_dbcon, $dbcon);
$query_slide ="SELECT * FROM photos_slide_tb";
$slide = mysqli_query($query_slide , $dbcon) or die(mysqli_error());
$row_slide = mysqli_fetch_assoc($slide);
$totalRows_slide = mysqli_num_rows($slide); ?>
<div id="sliderFrame">
<div id="slider">
<?php if ($totalRows_slide == 0) { ?><h1> </h1>
<h1 align="center">Not available</h1>
<?php } else do { ?>
<img src="photos/<?php echo $row_slide['location'];?>" alt="<?php echo $row_slide['caption'];?>" />
<?php } while ($row_slide = mysqli_fetch_assoc($slide)); ?>
</div>
<div id="htmlcaption" style="display: none;">
</div>
</div>
dbcon.php
<?php
$hostname_dbcon = "localhost";
$database_dbcon = "123";
$username_dbcon = "123";
$password_dbcon = "123";
$dbcon = mysqli_connect($hostname_dbcon, $username_dbcon, $password_dbcon) or trigger_error(mysqli_error(), E_USER_ERROR);
?>
开关变量'mysqli_select_db($ dbcon,$ database_dbcon);' – Daan
的[mysqli的\ _select \ _db()预计参数1是mysqli的,串给定的可能的重复](http://stackoverflow.com/questions/13979210/mysqli-select-db-expects-parameter-1-to-be-mysqli-string-given) –
交换你的$参数,连接必须先选择数据库。 –