ord
    (PHP 3, PHP 4 )
ord -- Return ASCII value of character
Description
int 
ord ( string string)
     Returns the ASCII value of the first character of
     string.  This function complements
     chr().
     
Example 1. ord() example <?php
if (ord($str) == 10) {
    echo "The first character of \$str is a line feed.\n";
}
?> |  
  | 
    
     You can find an ASCII-table over here: http://www.asciitable.com.
    
     See also chr().