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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