I'm using Jquery Price Format to format money using ,(vírgula)
To separate cents and .(ponto) to separate thousands, it looks something like this:
How can I validate this by accepting only numbers, periods, and commas?
obs: R $ prefix is not sent.
In PHP you can use a regex to validate the data:
$valid = preg_match('/^(\d{1,3}\.)*?(\d{1,3}),\d{2}$/','99.999,99');
The variable $valid will store the Boolean value that will inform you if the value is true, or if it is not false.
One of the solutions is to use a pattern in the input field
follows an ex:
<input type="number" pattern="^[R$\-\s]*[\d\.]*?([\,]\d{0,2})?\s*$" />
this validates the following entries
1 => true
1,00 => true
R$1 => true
R$1000 => true
0,1 => true
1.000,00 => true
R$1.000.000 => true
5678 => true
and invalidates these others
1,001 => false
02,0 => false
22.42 => false
001 => false
192,168,1,2 => false
. => false
,55 => false
2000.000 => false
In addition, you work with the field mask to force the use of this data.