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Revision: 11617
at February 11, 2009 11:37 by duniyadnd
Updated Code 
function isHexadecimalString ( $str ) {
  if ( preg_match("/^[a-f0-9]{1,}$/is", $str) ) {
      return true;
  } else {
      return false;
  }
}

Revision: 11616
at February 11, 2009 11:00 by duniyadnd
Initial Code 
<?
function isHexadecimalString ( $str ) {
  if ( preg_match("/^[a-f0-9]{1,}$/is", $str) ) {
      return true;
  } else {
      return false;
  }
}
?>
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    
Figure out if the string possesses only hexadecimal characters in the string. If not, fail. Remember, white spaces are not hexadecimal, so make sure you trim() your strings before you send it in or explode your string.

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
preg_match for Hexadecimal Strings

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
php

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
PHP