Cut Short Regular Expression

[javediq_143]

Hi All,

I'm developing my first CMS system and got stuck in a section where the Admin can ENTER NEW Records. I want to validate the input using Regular Exp but not getting thru it as I'm totally new to this. Though I've written Reg Exp, which is working fine; to my assumption, I think the codes are not good as they are very lengthy.

 

Below are the variation of input which the Admin can enter. I need an expression to validate these given types:

NOTE:word denote single word of any length of char incl only a-z/A-Z and period

 

[*]word

[*]word word

[*]word word word    No Code written for this 

[*]Char(s). word

[*]Char(s). word word    No Code written for this

[*]Char. Char. word

 

The code which I've written are:

function valid_alpha_nm($str)
{
      //VALIDATE FIRST TYPE
if(eregi('^[a-zA-Z]+$', $str))
{
return true;
}
     
      //VALIDATE SECOND TYPE
if(eregi('^[a-zA-Z]+[[:space:]]{1}[a-zA-Z]+$', $str)) 
{
return true;
}

      //VALIDATE FOURTH TYPE
if(eregi('^[a-zA-Z]+[\.]{1}[[:space:]]{1}[a-zA-Z]+$', $str))
{
return true;
}

      //VALIDATE SIXTH TYPE
if(eregi('^[a-zA-Z]+[\.]{1}[[:space:]]{1}[a-zA-Z]{1}[\.]{1}[[:space:]]{1}[a-zA-Z]+$', $str))
{
return true;
}
return false;
}

 

Can anyone help me to make it cut short or write a better expression which can validate the above given types of input.

 

Please help me soon.

 

Thanks & Regards,

Javed