Building Chinese Web Sites using PHP
Dr. Herong Yang, Version 2.11

Outputting Form Default Input Text in UTF-8

<< Input Text Data from Web Forms

<< Building Chinese Web Sites using PHP

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

Sections in This Chapter

Steps and Components Involved

Processing Web Form Input in ASCII

Processing Web Form Input in Latin1

Entering Latin1 Characters with Alt Keycodes

Testing Latin1 Alt Keycodes with IE

Processing Web Form Input in UTF-8

Outputting Form Default Input Text in UTF-8

Testing Alt Keycodes with IE on a UTF-8 Web Page

Dr. Herong Yang, updated in 2007
Outputting Form Default Input Text in UTF-8