Replace Comma(,) with Dot(.) RegEx php

Question

i am trying this code but i get this error: No ending delimiter \'/\' found

$form = \" 2000,50\";
$salary = preg_replace(\'/\',\', \'.\'/\', $f         


        

Answer 1

I don't understand your parameters -- I'm not sure what's supposed to be in the string and what isn't. But for preg_replace, the search pattern should be a string, and with the string also begin and end with a delimiter (typically '/'). I think it's redudant to need slashes round the search string when it's already inside a string, but that's how it works.

The second parameter should be a string containing the full stop and nothing else. This gives:

$salary = preg_replace( '/,/' , '.' , $form);

Other people are correct that str_replace will be fine for turning one character into another, but if the replacement you want gets more complicated preg_replace will be reasonable.

Answer 2

The '/' in your string is used as a start-of-regex delimiter so you need to escape it. The correct line should read:

$salary = preg_replace('\\/',', '.'/', $form);

I'm also curious why the second param is ', ' . '/' rather than ', /'.

EDIT

Ahh I see now, the line should read:

$salary = preg_replace( '/,/', '.', $form);

I was confused because the first comma in your example should be a '.' to concat the string.

Answer 3

Regex is overkill for replacing just a single character. Why not just do this instead?

str_replace(',', '.', $form);

Answer 4

$salary = preg_replace('/,/', '.', $form);

But yeah, you don't really want to match a pattern but a string which is constant, so simply use str_replace().

Answer 5

You can simply use

str_replace(',','.',$form);