Php 当使用Count（*）作为

当我的查询如下所示时，如果在php中使用此选项，如何获得结果：

$query = "SELECT COUNT(*) AS call_count FROM `callsepaug` ";
        $query .= "WHERE start_time BETWEEN '" . $start_date . "' AND ";
        $query .= "'" . $end_date . "'";

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这与简单的查询相同，您可以使用

call\u count

$queryBuild = "SELECT COUNT(*) AS call_count FROM `callsepaug` ";
        $queryBuild .= "WHERE start_time BETWEEN '" . $start_date . "' AND ";
        $queryBuild .= "'" . $end_date . "'");

$query = mysqli_query($queryBuild);

$result =  mysqli_fetch_array($query);

echo $result['call_count'];

还是有对象

$query = "SELECT COUNT(*) AS call_count FROM `callsepaug` ";
        $query .= "WHERE start_time BETWEEN '" . $start_date . "' AND ";
        $query .= "'" . $end_date . "'";

$result = mysqli_query($link, $query);

$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
echo $row["call_count"];

试着这样做：

<?php
$query = "SELECT COUNT(*) AS call_count FROM `callsepaug` ";
        $query .= "WHERE start_time BETWEEN '" . $start_date . "' AND ";
        $query .= "'" . $end_date . "'";
$result = $mysqli->query($query);
$row_array=$result->fetch_array(MYSQLI_ASSOC);
print($row_array['TOTALFOUND']); 

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顺便提一下，您可以这样编写代码

$query = "
SELECT COUNT(*) call_count 
  FROM callsepaug
 WHERE start_time BETWEEN '$start_date' AND '$end_date';
 ";

试试这个：

$query = mysql_query("SELECT COUNT(*) AS call_count FROM `callsepaug` ";
        $query .= "WHERE start_time BETWEEN '" . $start_date . "' AND ";
        $query .= "'" . $end_date . "'");

$result =  mysql_fetch_array($query);

echo $result[0];

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您的第一个示例是一个错误，您将mysql_查询（..）分配给$query，然后添加where子句，您必须在mysql_查询之前连接。。。