ext/spl/tests/iterator_039.phpt - master - vshmidt/php

ext/spl/tests/iterator_039.phpt
118 строк2 KB
Máté Kocsis
Declare tentative return types in ext/spl - part 3 (#7239)
16 июл 2021, 13:09
16 июл 2021, 13:09b3e0888
--TEST--
SPL: LimitIterator and backward seeking
--FILE--
<?php

class NumericArrayIterator implements Iterator
{
    protected $a;
    protected $i = 0;

    public function __construct($a)
    {
        echo __METHOD__ . "\n";
        $this->a = $a;
    }

    public function valid(): bool
    {
        echo __METHOD__ . "\n";
        return $this->i < count($this->a);
    }

    public function rewind(): void
    {
        echo __METHOD__ . "\n";
        $this->i = 0;
    }

    public function key(): mixed
    {
        echo __METHOD__ . "\n";
        return $this->i;
    }

    public function current(): mixed
    {
        echo __METHOD__ . "\n";
        return $this->a[$this->i];
    }

    public function next(): void
    {
        echo __METHOD__ . "\n";
        $this->i++;
    }
}

$it = new LimitIterator(new NumericArrayIterator(array(12, 25, 42, 56)));

foreach($it as $k => $v)
{
    var_dump($k);
    var_dump($v);
}

echo "===SEEK===\n";

$it->seek(2);

echo "===LOOP===\n";

foreach(new NoRewindIterator($it) as $k => $v)
{
    var_dump($k);
    var_dump($v);
}

?>
--EXPECT--
NumericArrayIterator::__construct
NumericArrayIterator::rewind
NumericArrayIterator::valid
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
int(0)
int(12)
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
int(1)
int(25)
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
int(2)
int(42)
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
int(3)
int(56)
NumericArrayIterator::next
NumericArrayIterator::valid
===SEEK===
NumericArrayIterator::rewind
NumericArrayIterator::valid
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
===LOOP===
int(2)
int(42)
NumericArrayIterator::next
NumericArrayIterator::valid
NumericArrayIterator::current
NumericArrayIterator::key
int(3)
int(56)
NumericArrayIterator::next
NumericArrayIterator::valid