Email with attachment in Magento

I had a specific requirement to generate a CSV file and send the same as an attachment in a mail, without saving it at any physical location.

I am listing here the way to do it.

<?php
$csv = '';
$_columns = array(
	'N',
	'SKU',
	'Name'
	);
	$data = array();
	// prepare CSV header…
	foreach ($_columns as $column) {
		$data[] = '"'.$column.'"';
	}
	$csv .= implode(',', $data)."\n";

$productData = array();
$productData[] = array('sku'=>'S1','name'=>'PN1');
$productData[] = array('sku'=>'S2','name'=>'PN2');

$i = 1;
foreach($productData as $k => $v)
{
	$tmp = array();
	$tmp[] = '"'.$i.'"';
	$tmp[] = '"'.$v['sku'].'"';
	$tmp[] = '"'.$v['name'].'"';
	$csv .= implode(',',$tmp)."\n";
	$i++;
}
//end

if(!empty($csv))
{
	$template = Mage::getStoreConfig('mail/template/path',Mage::app()->getStore()->getId());
	$translate = Mage::getSingleton('core/translate');
	$translate->setTranslateInline(false);
	$emails = 'abc@abc.com,bcd@bcd.com';
	$mailTemplate = Mage::getModel('core/email_template');
	
	$name = 'Admin'; //admin name
	$from = 'general';
	$content = $csv;

	$html = "Mail content goes here";

	$subject = 'Mail subject goes here'.date('Y-m-d');

	foreach (explode(',', $emails) as $_email)
	{

		$attachment = $mailTemplate->getMail()->createAttachment($content); //add the created file as an attachment
		$attachment->filename = 'FileName_'.date('Y-m-d').'.csv';

		try{
		$mailTemplate->setDesignConfig(array('area' => 'backend'))
			->sendTransactional($template,
				$from,
				trim($_email),
				$name,
				array(
					'mail_content' => $html,
					'mail_subject' => $subject
				)
			);
		}catch(Exception $e)
		{
			echo $e->getMessage();
		}
	}
}

?>

For further read
Mail in Magento
Add attachment to order email in Magento

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