How do I replace commas with dot in the quoted sub-string only?

Question

Suppose I have a string:

$string =  'apple, cat, dog, "0,445",symphony, "0,454"';

What output I want is:

$string =  'apple, cat, dog, "0.445",symphony, "0.454"';

Answer 1

You can do that using preg_replace

$string = preg_replace('/("\d+),(\d+")/','$1.$2',$string);