Regex Cari Angka

<?php
$pattern1 = '/([0-9]+)(\.[0-9]+)/';
$pattern2 = '/([^0-9]+)/';
$pattern3 = '/([^0-9]+)(\. )/';

$teks = 'harga cabe merah sekarang Rp. 75.000';
preg_match($pattern1,$teks,$output); 
$output2 = preg_replace($pattern2,'',$teks); 
$output3 = preg_replace($pattern3,'',$teks);

echo $output[0]."\n";
echo $output2."\n";
echo $output3;
?>