filtering/checking text input

[Anon]

Hi,

Is it possible to check the text which someone types in a textbox for certain characters? I have a PHP form in which peope, among other things, have to enter an email address. Is it possible to let PHP check the string for the presence of the '@' sign?

thanks,

Remco Meeder

[marcel]

You have to use `ereg' function or someting similar.
For example next line is checking if the input_field lokks like:
[e-mail]
foo,bar are any characters sequence except space.

if ( !ereg("^{[[:space:]]+@[[:space:]]+.[[:space:]]+$",} trim($input_field)) ){
// the email address is wrong
}

Marcel

Remco Meeder wrote:

Hi,

Is it possible to check the text which someone types in a textbox for certain characters? I have a PHP form in which peope, among other things, have to enter an email address. Is it possible to let PHP check the string for the presence of the '@' sign?

thanks,

Remco Meeder