capital check?

[codrgii]

how do i check in php if someone has posted at least 1 capital as their input and if they haven't then exit(); ?

[corbin]

Hrmmm two ways come to mind:

 

 

if(strtolower($input) == $input) {

    //invalid

}

 

 

if(!preg_match('/[A-Z]/', $input)) {

    //invalid

}

[Garethp]

if(!preg_match('~([A-Z]|exit\(\)~',$input))

{

//Has no capitals, and/or contains exit();

}

[trq]

if(!preg_match('~([A-Z]|exit\(\)~',$input))

{

//Has no capitals, and/or contains exit();

}

 

Ha! I think you misread the question.

[Garethp]

Oh... woops

 

if(!preg_match('~[A-Z]~', $input))

{

exit();

}

[trq]

Oh... woops

 

if(!preg_match('~[A-Z]~', $input))

{

exit();

}

 

Which is now exactly what corbin posted 3 replies ago. Well done.

[codrgii]

pardon but i forgot to mention how would i check to see if the user input contains at least one capital,one number and one lowercase?

 

would it be like

 

if(!preg_match('~[A-Za-z0-9]~', $input))