Misc. Функции
PHP Manual

connection_status

(PHP 4, PHP 5)

connection_statusReturns connection status bitfield

Описание

int connection_status ( void )

Gets the connection status bitfield.

Возвращаемые значения

Returns the connection status bitfield, which can be used against the CONNECTION_XXX constants to determine the connection status.

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Misc. Функции
PHP Manual