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[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;

use PhpOffice\PhpSpreadsheet\Spreadsheet;

class Iterator implements \Iterator
{
    /**
     * Spreadsheet to iterate.
     *
     * @var Spreadsheet
     */
    private $subject;

    /**
     * Current iterator position.
     *
     * @var int
     */
    private $position = 0;

    /**
     * Create a new worksheet iterator.
     *
     * @param Spreadsheet $subject
     */
    public function __construct(Spreadsheet $subject)
    {
        // Set subject
        $this->subject = $subject;
    }

    /**
     * Destructor.
     */
    public function __destruct()
    {
        unset($this->subject);
    }

    /**
     * Rewind iterator.
     */
    public function rewind()
    {
        $this->position = 0;
    }

    /**
     * Current Worksheet.
     *
     * @return Worksheet
     */
    public function current()
    {
        return $this->subject->getSheet($this->position);
    }

    /**
     * Current key.
     *
     * @return int
     */
    public function key()
    {
        return $this->position;
    }

    /**
     * Next value.
     */
    public function next()
    {
        ++$this->position;
    }

    /**
     * Are there more Worksheet instances available?
     *
     * @return bool
     */
    public function valid()
    {
        return $this->position < $this->subject->getSheetCount() && $this->position >= 0;
    }
}