目录

count 统计

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2023-12-01

count

获取数据表中的行数

count($table, $where)
  • table [string]

    表名.

  • where (optional) [array]

    WHERE 条件.

count($table, $join, $column, $where)
  • table [string]

    表名.

  • join [array]

    多表查询.

  • column [string]

    需要统计的字段.

  • where (optional) [array]

    WHERE 条件.

Return: [number] 行的数量.返回的是数字类型.
$count = $database->count("account", [    "gender" => "female"]);echo "We have " . $count . " female users.";