preserving 0’s after decimal point while displaying Currency in Indian Numbering Format in PHP

I need to display ‘150000.50’ in Indian number format with the last zero intact.

I followed the following, but the solution
Previous answer doesn’t completely solve the issue.

1.

preg_replace("/(d+?)(?=(dd)+(d)(?!d))(.d+)?/i", "$1,", $num);
 // Output: 1,50,000.5 
// Expected output: 1,50,500.50

new NumberFormatter($locale = 'en_IN', NumberFormatter::DECIMAL); from Intl extension.
// Output: 1,50,000.5
// Expected output: 1,50,500.50

money_format is now deprecated. If anyone can update preg_replace function regex to preserve the trailing zero, it will be helpful.