Yii2 rules for validating percentage like 65.45

Question

I know this is very simple and repeated question, But i tried almost all but didnt get any solution. I want to validate a percentage of student like. Eg: 65.45.. The user has to enter value like this only otherwise it should show error. I have given below rules in the model. But its taking only integer values. Not validation for percentage.

[['c_percentage'], 'number', 'numberPattern' => '/^\s*[-+]?[0-9]*[.,]?[0-9]+([eE][-+]?[0-9]+)?\s*$/'],

Please help to solve this. Thanks in advance.

Regarding *its taking only integer values*: the pattern is [correct](https://regex101.com/r/L6kPWD/1), it allows matching both integer and float values, are you sure you are checking/assigned the rule to/ the right element? Note that `[0-9]*` matches 0 or more digits, and `[.,]?` matches 1 or 0 commas/periods. — Wiktor Stribiżew, Mar 17 '17 at 07:30
Regarding to your requirement *The user has to enter value like this **only*** modify it to be like this: `/^\s*[-+]?[0-9]+[.,][0-9]+([eE][-+]?[0-9]+)?\s*$/` — revo, Mar 17 '17 at 07:31
Or if the scientific notation should not be allowed, use a much simpler `/^\s*\d+[.,]\d+\s*$/` — Wiktor Stribiżew, Mar 17 '17 at 07:40
Thank you for replies.. Its still dos'nt work. its accepting values like 55.6666. i want to take value like 55.66 — Salman Riyaz, Mar 17 '17 at 09:35
What if you also replace `'numberPattern'` with `'pattern'`? — Wiktor Stribiżew, Mar 17 '17 at 09:43
yeah did tat and i have to change `number` to `match`. Even now its same as previous. Taking values if i enter 55.66666 — Salman Riyaz, Mar 17 '17 at 09:47
isn't it is possible to restrict only two digit after `.` Dot symbol?? — Salman Riyaz, Mar 17 '17 at 09:48

Toto · Accepted Answer · 2017-03-17T16:26:32.957

3

This will do the job:

/^\s*[+-]?\d+(?:[.,]\d{1,2})?\s*$/

Explanation:

/               : regex delimiter
  ^             : begining of string
    \s*         : 0 or more spaces
    [+-]?       : optional plus or minus
    \d+         : 1 or more digits
    (?:         : start non capture group
      [.,]      : dot or comma
      \d{1,2}   : 1 or 2 digits (decimal part)
    )?          : the group is optional to allow whole integer
    \s*         : 0 or more spaces
  $             : end of string
/               : regex delimiter

If you want to match only float values, remove the optional part:

/^\s*[+-]?\d+[.,]\d{1,2}\s*$/

or, if you want exactly 2 decimals:

/^\s*[+-]?\d+[.,]\d{2}\s*$/

edited Mar 17 '17 at 16:26

answered Mar 17 '17 at 10:53

Toto

89,455
62
89
125

Does it work if you change the non capture into a capture group (ie. remove `?:` at the begining of the group) ? – Toto Mar 17 '17 at 12:47
Partially working. its now not showing error msg if i enter eg: 55. – Salman Riyaz Mar 17 '17 at 12:52
@SalmanRiyaz: Do you want to accept whole integer (ie. `45`) or only float with 2 decimal max? – Toto Mar 17 '17 at 13:08
i want float with 2 decimals. Like 45.55 – Salman Riyaz Mar 17 '17 at 16:07
I would just add a ['c_percentage', 'compare', 'compareValue' => 100, 'operator' => '<='] to ensure that its is not more than 100.00% – farrusete May 05 '17 at 20:58

dev.meghraj · Answer 2 · 2017-03-17T11:13:42.970

0

Try this it will validate

[['c_percentage'], 'number', 'numberPattern' => '/^[0-9]{1,2}(\.([0-9]{0,2})){0,1}$/'],

edited Mar 17 '17 at 11:13

answered Mar 17 '17 at 07:57

dev.meghraj

8,542
5
38
76

Thank you for reply.. Its still dos'nt work. its accepting values like 55.6666. i want to take value like 55.66 – Salman Riyaz Mar 17 '17 at 09:39
55.6666 is valid percentage, do you want accpet only 55.66 right? – dev.meghraj Mar 17 '17 at 11:13
check now answer – dev.meghraj Mar 17 '17 at 11:14
yes i want only 55.66- the updated answer also did'nt work – Salman Riyaz Mar 17 '17 at 12:45

Yii2 rules for validating percentage like 65.45

2 Answers2