Validating a text field

[indrajit_m]

Dear all,
In my work, I have to validate a text field so that it should contain only characters with space(means like "Sam Walt Robson"). For that I wrote a code segment as follows:

function check_field1($field_name_1)
{
if(!preg_match("/[^{a-zA-Z]+$/s",$field_name_1))}
return TRUE;
else return FALSE;
}

But it is accepting strings like "1mark", "22Steve", which it should not. Can any please help me in solving this problem?
Thanking you,
with regards,
Indrajit.

[tomhath]

You need to anchor the regular expression at the beginning of the string as well as the end. You might also want to include the whitespace \s character in the character set to match. (untested code follows):

function check_field1($field_name_1)
{
return (!preg_match("/^{[a-zA-Z]+$/s",$field_name_1)} );
}