RangeIterator

An iterator that behaves like PHP's range() function.

It supports both ascending and descending sequences and allows iteration over floating-point or integer ranges.

Usage Example:

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• Full name: \FastForward\Iterator\RangeIterator
• This class implements: Iterator, Countable

Methods

__construct

Initializes the RangeIterator.

public __construct(float|int $start, float|int $end, float|int $step = 1, bool $includeBoundary = false): mixed

Parameters:

Parameter	Type	Description
$start	float|int	the starting value of the range
$end	float|int	the ending value of the range
$step	float|int	the step size between values (must be positive)
$includeBoundary	bool	whether the iterator should force the end value when the next step would overshoot it

Throws:

if step is non-positive or greater than the range size

• InvalidArgumentException

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current

Returns the current value in the range.

public current(): float|int

Return Value:

the current value

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key

Returns the current key (index).

public key(): int

Return Value:

the current index in the iteration

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next

Moves to the next value in the range.

public next(): void

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rewind

Resets the iterator to the start of the range.

public rewind(): void

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valid

Checks if the current position is within the valid range.

public valid(): bool

Return Value:

true if the current value is within the valid range, false otherwise

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count

Counts the total number of steps in the range.

public count(): int

Return Value:

the number of elements in the range

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