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Trait Yiisoft\Arrays\ArrayAccessTrait

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ArrayAccessTrait provides the implementation for {@see \IteratorAggregate}, {@see \ArrayAccess} and {@see \Countable}.

Note that ArrayAccessTrait requires the class using it contain a property named data which should be an array. The data will be exposed by ArrayAccessTrait to support accessing the class object like an array.

Public Properties

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Property Type Description Defined By
$data array Yiisoft\Arrays\ArrayAccessTrait

Public Methods

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Method Description Defined By
count() Returns the number of data items. Yiisoft\Arrays\ArrayAccessTrait
getIterator() Returns an iterator for traversing the data. Yiisoft\Arrays\ArrayAccessTrait
offsetExists() This method is required by the interface {@see \ArrayAccess}. Yiisoft\Arrays\ArrayAccessTrait
offsetGet() This method is required by the interface {@see \ArrayAccess}. Yiisoft\Arrays\ArrayAccessTrait
offsetSet() This method is required by the interface {@see \ArrayAccess}. Yiisoft\Arrays\ArrayAccessTrait
offsetUnset() This method is required by the interface {@see \ArrayAccess}. Yiisoft\Arrays\ArrayAccessTrait

Property Details

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$data public property
public array $data = null

Method Details

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count() public method

Returns the number of data items.

This method is required by Countable interface.

public integer count ( )
return integer

Number of data elements.

 

                public function count(): int
{
    return count($this->data);
}
getIterator() public method

Returns an iterator for traversing the data.

This method is required by the SPL interface {@see \IteratorAggregate}. It will be implicitly called when you use foreach to traverse the collection.

public ArrayIterator getIterator ( )
return ArrayIterator

An iterator for traversing the cookies in the collection.

 

                public function getIterator(): ArrayIterator
{
    return new ArrayIterator($this->data);
}
offsetExists() public method

This method is required by the interface {@see \ArrayAccess}.

public boolean offsetExists ( mixed $offset )
$offset mixed

The offset to check on.

 

                public function offsetExists(mixed $offset): bool
{
    return isset($this->data[$offset]);
}
offsetGet() public method

This method is required by the interface {@see \ArrayAccess}.

public mixed offsetGet ( mixed $offset )
$offset mixed

The offset to retrieve element.
return mixed

The element at the offset, null if no element is found at the offset.

 

                public function offsetGet(mixed $offset): mixed
{
    return $this->data[$offset] ?? null;
}
offsetSet() public method

This method is required by the interface {@see \ArrayAccess}.

public void offsetSet ( mixed $offset, mixed $value )
$offset mixed

The offset to set element.
$value mixed

The element value.

 

                public function offsetSet(mixed $offset, mixed $value): void
{
    if ($offset === null) {
        $this->data[] = $value;
    } else {
        $this->data[$offset] = $value;
    }
}
offsetUnset() public method

This method is required by the interface {@see \ArrayAccess}.

public void offsetUnset ( mixed $offset )
$offset mixed

The offset to unset element.

 

                public function offsetUnset(mixed $offset): void
{
    unset($this->data[$offset]);
}