$re = '/cash\s*[:,.-]?\s*(rp|idr)[.,]?\s*(\d(?:[\d\s,.]*\d)?)(?!\S)(?!\s*(?:juta|jt|m)\b)/m';
$str = 'harga cash: rp 130jt (nego alu
harga cash: rp 230juta (nego alu
harga cash: rp 330 juta (nego alu
harga cash: rp 430,000,000 juta (nego alu
harga cash: rp 530m (nego alu
harga cash: rp 630 (nego alu
harga cash: rp 730000000 (nego alu
harga cash: rp 830,000,000 (nego alu
harga cash: rp 930 000 000 (nego alu';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php