Cml\Interfaces\Db::count PHP Метод

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count() публичный Метод

获取 COUNT(字段名或*) 的结果
public count ( string $field = '*', boolean $isMulti = false, boolean | string $useMaster = false ) : mixed
$field string 要统计的字段名
$isMulti boolean 结果集是否为多条 默认只有一条
$useMaster boolean | string 是否使用主库 默认读取从库
Результат mixed 
    public function count($field = '*', $isMulti = false, $useMaster = false);
Db
__construct
__destruct
_and
_or
affectedRows
avg
buildSql
callProcedure
chunk
columns
commit
conditionFactory
connect
count
decrement
delete
get
getAllTableStatus
getDbFields
getOne
getOneValue
getPk
getTables
groupBy
having
increment
insertId
join
lBrackets
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table
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where
whereBetween
whereGt
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whereIn
whereLike
whereLt
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whereNot
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whereNotIn
whereNotLike
whereNotNull
whereNull
whereRegExp