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PHP

Callback function converts character encoding in output buffer


mb_output_handler

(PHP 4 >= 4.0.6, PHP 5)

mb_output_handlerCallback 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:

  • Does not set Content-Type, 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 some binary data such as image from PHP script with PHP 4.3.0 or later, Content-Type: header must be send using header() before any binary data was send to client (e.g. header("Content-Type: image/png")). If Content-Type: header was send, output character encoding conversion will not be performed.

Note that if 'Content-Type: text/*' was send using header(), the sending data is regarded as text, encoding conversion will be performed using character encoding settings.

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

See Also



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