avg求平均值
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2023-12-01
avg
获得某个列字段的平均值
avg($table, $column, $where)table [string]
表名.
column [string]
列字段
where (optional) [array]
WHERE 条件.
table [string]
The table name.
join [array]
Table relativity for table joining.
column [string]
The target column will be calculated.
where (optional) [array]
The WHERE clause to filter records.
$average = $database->avg("account", "age", [ "gender" => "male"]);echo "The average age of male user is " . $average;