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yii
web
SessionIterator
valid
yii\web\SessionIterator::valid PHP Method
SessionIterator Class Documentation
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valid()
public
method
This method is required by the interface [[\Iterator]].
public
valid
( ) :
boolean
return
boolean
public function valid() { return $this->_key !== false; }
SessionIterator
__construct
current
key
next
rewind
valid