Outputting Form Default Input Text in UTF-8

Building Chinese Web Sites using PHP

Dr. Herong Yang, Version 2.11

Building Chinese Web Sites using PHP

∟Input Text Data from Web Forms

∟Outputting Form Default Input Text in UTF-8

This section describes how to set form default input text with UTF-8 encoded characters.

From the previous section, I learned that UTF-8 byte sequences cannot be presented in &#xnnnn format in the Web page.

So I revised my test PHP script to use UTF-8 byte sequences directly to provide Web form default text:

<?php #Web-Form-Input-UTF8-Revised.php
# Copyright (c) 2007 by Dr. Herong Yang, http://www.herongyang.com/
#
  print('<html><head>');
  print('<meta http-equiv="Content-Type"'.
    ' content="text/html; charset=utf-8"/>');
  print('</head><body>'."\n");

# Default input text
  $input = 'Télévision';
  $input_hex = '54C3A96CC3A9766973696F6E'; 

# Form reply determination
  $reply = isset($_REQUEST["Submit"]);

# Process form input data
  if ($reply) {
    if (isset($_REQUEST["Input"])) {
      $input = $_REQUEST["Input"];
    }
  }

# Display form
  print('<form>');
  print('<input type="Text" size="40" maxlength="64"'
   . ' name="Input" value="'.$input.'"/><br/>');
  print('<input type="Submit" name="Submit" value="Submit"/>');
  print('</form>'."\n");

# Display reply
  if ($reply) {
    print('<pre>'."\n");
    print('Content-Type:'."\n");
    print('  text/html; charset=utf-8'."\n");
    print('You have submitted:'."\n");
    print('  Text = '.$input."\n");
    print('  Text in HEX = '.strtoupper(bin2hex($input))."\n");
    print('  Default HEX = '.$input_hex."\n");
    print('</pre>'."\n");
  } 

  print('</body></html>');
?>

I tested this PHP script with IE. It worked correctly both before and after click the Submit button:
Processing Web Form Input in UTF-8