Google contacts vcards cleaner

google-contacts-vcards-cleaner.php

<?
require "vcard-extendible.php"; // https://github.com/nuovo/vCard-parser
class GCards extends vCard {
	/**
	 * @return bool
	 */
	public function hasTel () {
		return (sizeof ($this->tel) > 0);
	}
	public function hasMail () {
		return (sizeof ($this->email) > 0);
	}
}

// lot of vcards
$cards = new GCards ("cards.vcf");
// var_dump (sizeof ($cards));

$buffer = "";
// $notempty = array ();
foreach ($cards as $card)
{
	if ($card->hasTel () || $card->hasMail ())
	{
		// $notempty[] = $card;
		$buffer .= (string)$card;
	}
}
// var_dump (sizeof ($notempty));

file_put_contents ('notempty.vcf', $buffer);