我需要在我的 SQLtable“醫生”中顯示記錄（行）的“計數”。此計數必須出現在我的儀表板頁面上醫生總數的以下元素中這是我的儀表板頁面的index.php <?php$con = mysqli_connect("localhost","root","","hospital_db");$result = mysqli_query($con,"SELECT * FROM doctors");$rows = mysqli_num_rows($result); $content = '<div class="row"> <div class="col-lg-3 col-xs-6"> <!-- small box --> <div class="small-box bg-aqua"> <div class="inner"> <h3><?php echo '.$rows.';?></h3> <p>Doctors</p> </div> <div class="icon"> <i class="ion ion-bag"></i> </div> <a href="http://localhost/medibed/doctor" class="small-box-footer">View Doctors <i class="fa fa-arrow-circle-right"></i></a> </div> </div> <!-- ./col --> </div>'; include('../master.php');?>
2 回答
慕姐8265434
TA貢獻1813條經驗 獲得超2個贊
您應該在新的 php 版本中使用 mysqli 對象嘗試以下代碼
首先建立連接就像
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
$result = mysqli_query($con,"SELECT * FROM doctors");
$rows = mysqli_num_rows($result);
echo "There are " . $rows . " rows in my table.";
$content = '<div class="row">
<div class="col-lg-3 col-xs-6">
<!-- small box -->
<div class="small-box bg-aqua">
<div class="inner">
*<h3><?php echo "$rows"; } ?></h3>*
<p>Doctors</p>
</div>
<div class="icon">
<i class="ion ion-bag"></i>
</div>
<a href="http://localhost/medibed/doctor" class="small-box-footer">View Doctors <i class="fa fa-arrow-circle-right"></i></a>
</div>
</div>
<!-- ./col -->
</div>';
include('../master.php');
?>
蠱毒傳說
TA貢獻1895條經驗 獲得超3個贊
如果您只需要計數那么為什么不在查詢中使用聚合函數 count(*) 呢？這對你有更好的幫助。在 h3 標記的代碼中，您可以直接連接字符串，而不是再次使用 php 代碼。這可能看起來更好并且是結構化的形式。
嘗試這個：
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
$result = mysqli_query($con,"SELECT count(*) as total_rows FROM doctors");
$rows = $result->total_rows;
echo "There are " . $rows . " rows in my table.";
$content = '<div class="row">
<div class="col-lg-3 col-xs-6">
<!-- small box -->
<div class="small-box bg-aqua">
<div class="inner">
*<h3>'.$rows.'</h3>*
<p>Doctors</p>
</div>
<div class="icon">
<i class="ion ion-bag"></i>
</div>
<a href="http://localhost/medibed/doctor" class="small-box-footer">View Doctors <i class="fa fa-arrow-circle-right"></i></a>
</div>
</div>
<!-- ./col -->
</div>';
include('../master.php');
?>
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