// Exports CSV 
function exportCSV($where = NULL, $delimeter = ',')
{ 
	$csv = ''; 
	$this->recursive = -1; 
	$rows = $this->findAll($where); 
	foreach($rows as $row)
	{ 
		$row[$this->name] = str_replace('\', '\\', 
		$row[$this->name]); 
		$row[$this->name] = str_replace($delimeter, '\' . 
		$delimeter, $row[$this->name]); 
		$csv .= implode($delimeter, $row[$this->name]) . chr(13); 
	} 

	$csv = trim($csv); 
	return $csv;
}

// Imports CSV 
function importCSV($csv, $delimeter = ',')
{
	$keys = $this->getFieldNames();
	$rows = array(); 
	$csv = trim($csv); 
	$csv_rows = explode(chr(13), $csv); 
	
	foreach($csv_rows as $csv_row)
	{ 
		$csv_row = str_replace('\\', '\', $csv_row); 
		$csv_row = str_replace('\' . $delimeter, chr(26), $csv_row);
		$row = explode($delimeter, $csv_row); 
		$row = str_replace(chr(26), $delimeter, $row); 
		$row = array_combine($keys, $row); 
		$rows = array_merge_recursive($rows, 
		array(array($this->name => $row))); 
	} 
	
	return $rows; 
} 

// Returns model fieldnames 
function getFieldNames()
{ 

	$names = array(); 
	$fields = $this->_schema;

	foreach($fields as $key => $value)
		array_push($names, $key);

	return $names;
} 

Import Export CSV routine for CakePHP

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