CsvArray: Simple array wrapper class for representing CSV data, with methods for converting to CSV from an array.

gistfile1.php

<?php

class CsvArray
{
	protected $data;
	protected $delimiter;
	protected $enclosure;
	protected $forceEnclosement;

	public function __construct($data = array(), $delimiter = ',', $enclosure = '"', $forceEnclosement = false)
	{
		// Double check for false values, just in case user passed NULL or FALSE to use default value
		$this->delimiter = ($delimiter) ? $delimiter : ',';
		$this->enclosure = ($enclosure) ? $enclosure : '"';
		$this->forceEnclosement = (bool) $forceEnclosement;

		$this->setData($data);
	}

	/**
	 * To CSV
	 *
	 * Function adapted from http://stackoverflow.com/questions/3933668/convert-array-into-csv#12470042
	 *
	 * @return string CSV formatted string
	 */
	public function toCsv()
	{
		$delimiter = preg_quote($this->delimiter, '/');
		$enclosure = preg_quote($this->enclosure, '/');

		$rows = array();

		foreach ($this->data as $row)
		{
			$r = array();

			foreach ($row as $field)
			{
				if ($this->forceEnclosement || preg_match("/(?:${delimiter}|${enclosure}|\s)/", $field))
				{
					$r[] = $enclosure . str_replace($enclosure, $enclosure . $enclosure, (string) $field) . $enclosure;
				}
				else
				{
					$r[] = (string) $field;
				}
			}

			$rows[] = implode($delimiter, $r);
		}

		return trim(implode("\n", $rows));
	}

	protected function dataToArray($data)
	{
		if (is_object($data))
		{
			if (method_exists($data, 'toArray'))
			{
				$data = $data->toArray();
			}
			elseif (method_exists($data, 'to_array'))
			{
				$data = $data->to_array();
			}
		}

		if (!is_array($data))
		{
			throw new Exception('Invalid data');
		}

		return $data;
	}

	public function setData($data)
	{
		$this->data = $this->dataToArray($data);
	}

	public function addRow($row)
	{
		$row = $this->dataToArray($row);

		$this->data[] = $row;
	}

	public function appendRow($row)
	{
		$this->addRow($row);
	}

	public function prependRow($row)
	{
		$row = $this->dataToArray($row);

		array_unshift($this->data, $row);
	}

	public function getData()
	{
		return $this->data;
	}

	public function toString()
	{
		return $this->toCsv();
	}

	public function toArray()
	{
		return $this->getData();
	}

	public function __toString()
	{
		return $this->toCsv();
	}
}