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