PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
mb_output_handler - Callback function converts character encoding in output buffer
Code Examples

mb_output_handler( string$string, int$status ): string

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.



The contents of the output buffer.


The status of the output buffer.

Return Values

The converted string.



If you want to output binary data, such as an image, 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.

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Example of mb_output_handler

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