Class.PgFetchArrayIterator.php

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<?php
/*
 * @author Anakeen
 * @package FDL
*/

namespace Dcp;

class PgFetchArrayIterator implements \Iterator
{
    protected $row = 0;
    protected $pgResultCount = 0;
    protected $pgResult = null;
    
    public function __construct($pgResult)
    {
        $this->pgResult = $pgResult;
        $this->pgResultCount = pg_num_rows($this->pgResult);
    }
    /**
     * (PHP 5 &gt;= 5.0.0)<br/>
     * Return the current element
     * @link http://php.net/manual/en/iterator.current.php
     * @return mixed Can return any type.
     */
    public function current()
    {
        return pg_fetch_array($this->pgResult, $this->row, PGSQL_BOTH);
    }
    /**
     * (PHP 5 &gt;= 5.0.0)<br/>
     * Move forward to next element
     * @link http://php.net/manual/en/iterator.next.php
     * @return void Any returned value is ignored.
     */
    public function next()
    {
        $this->row++;
    }
    /**
     * (PHP 5 &gt;= 5.0.0)<br/>
     * Return the key of the current element
     * @link http://php.net/manual/en/iterator.key.php
     * @return mixed scalar on success, or null on failure.
     */
    public function key()
    {
        return $this->row;
    }
    /**
     * (PHP 5 &gt;= 5.0.0)<br/>
     * Checks if current position is valid
     * @link http://php.net/manual/en/iterator.valid.php
     * @return boolean The return value will be casted to boolean and then evaluated.
     * Returns true on success or false on failure.
     */
    public function valid()
    {
        return ($this->row < $this->pgResultCount);
    }
    /**
     * (PHP 5 &gt;= 5.0.0)<br/>
     * Rewind the Iterator to the first element
     * @link http://php.net/manual/en/iterator.rewind.php
     * @return void Any returned value is ignored.
     */
    public function rewind()
    {
        $this->row = 0;
    }
}