Multibyte String Functions
PHP Manual

mb_output_handler

(PHP 4 >= 4.0.6, PHP 5)

mb_output_handler — Callback function converts character encoding in output buffer

Description

string mb_output_handler ( string $contents , int $status )

mb_output_handler() is ob_start() callback function. mb_output_handler() converts characters in the output buffer from internal character encoding to HTTP output character encoding.

Parameters

contents

The contents of the output buffer.

status

The status of the output buffer.

Return Values

The converted string.

Changelog

Version Description
4.1.0

This handler now adds the charset HTTP header when the following conditions are met:

  • Content-Type has not been set, using header().
  • The default MIME type begins with text/.
  • The mbstring.http_input setting is something other than pass.

Examples

Example #1 mb_output_handler() example

<?php
mb_http_output("UTF-8");
ob_start("mb_output_handler");
?>

Notes

Note:

If you want to output binary data, such as an image, using PHP 4.3.0 or later, a Content-Type: header must be set using header() before any binary data is sent to the client (e.g. header("Content-Type: image/png")). If Content-Type: header is sent, output character encoding conversion will not be performed.

Note that if 'Content-Type: text/*' is sent, the content body is regarded as text; conversion will take place.

If you want to output binary data, such as an image, using PHP 4.2.x or earlier, you must set output encoding to "pass" using mb_http_output().

See Also

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