10 replies to this topic

[mutaz]

Hello everyone,
I want to write a regular expression for all the expressions that contains at least 1 digit and at least one letter can anyone help me and tell me how to do that...
thanx in advance

[Orjan]

"/([A-Za-z0-9]+)/" is for whatever combination of letters and numbers with demand of at least one. the within [] specifies what characters are allowed, the + means one or more.

[mutaz]

but in this case (/([A-Za-z0-9]+)/) can i write any special character
in fact i want to be able to write any kind of characters but i want to force him to write at least one digit and one letter

[Orjan]

ah, then you go with "/(.+)/" as . (dot) is any char.

[BlaineSch]

If you want anything atleast one character you could also just test the string length

if(strlen($var)>=1) {

//do stuff

}

I also think this will work:
"/(.){1,}/"
1 or more.

[mutaz]

thank you for help, but i'm afraid that this is not what i was looking of because may be i couldn't explain what i need
i needed something like for example : /([0-9]+[a-zA-z]+[any character is allowed even digits and letters])/
and of course i'm not forcing to be the digit in the first place and the letter in the second.
hope that i could clarified my self

[Orjan]

what is the allowed characters then?

[mutaz]

let me give you an example for accepted combination and not accepted combination
accepted combination like :
123db8$$#@ (contains letters and digits)
12345f6#$# (contains letters and digits)
988888m888 (contains letters and digits)
lkasdfasd6fkjlasdf&*#@ (contains letters and digits)

not accepted combination like :
adsfgtre#$%@ not accepted because doesn't contain any digit
123456675 not accepted because doesn't contain any letter
12547@!##@ not accepted because doesn't contain any letter

i hope that is clear enough...

[Orjan]

Ah, that is a different thing :-) that is not within my knowledge unfortunately. I hope John or someone else here with good regexp knowledge can help you there.

[WingedPanther]

The easiest way would be to require two matches, one for [0-9], the other for [a-zA-Z]. Otherwise you'd need something like:
(.*[0-9].*[a-zA-Z].*)|(.*[a-zA-Z].*[0-9].*)

[GabryelFall]

There is prolly an easier way to do it, but I was thinking along the lines of Panther. Within a loop you could test for [0-9], ding a var yes of no then swoop through another loop looking for [a-Z] and ding another var. Like I said, there's prolly an easier way but that is what my limited PHP knowledge brings to the table.

Edit: *ding* new page!