mb_output_handler(3) [php man page]

MB_OUTPUT_HANDLER(3)							 1						      MB_OUTPUT_HANDLER(3)

mb_output_handler - Callback function converts character encoding in output buffer

SYNOPSIS

       string mb_output_handler (string  $contents, int  $status)

DESCRIPTION

       mb_output_handler(3)  is ob_start(3) callback function. mb_output_handler(3) converts characters in the output buffer from internal charac-
       ter encoding to HTTP output character encoding.

PARAMETERS

	      o $contents
		- The contents of the output buffer.

	      o $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:	    |
       |	|						    |
       |	|		o Content-Type	has  not  been set, |
       |	|		  using header(3).		    |
       |	|						    |
       |	|		o The default MIME type begins with |
       |	|		  text/.			    |
       |	|						    |
       |	|		o The  mbstring.http_input  setting |
       |	|		is something other than 	    |
       |	|		  pass. 			    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      mb_output_handler(3) 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(3)
	      before any binary data is sent to the client (e.g. header("Content-Type: image/png")). If Content-Type: header is sent, output char-
	      acter 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(3).

SEE ALSO

       ob_start(3).

PHP Documentation Group 												      MB_OUTPUT_HANDLER(3)

IMAGEJPEG(3)								 1							      IMAGEJPEG(3)

imagejpeg - Output image to browser or file

SYNOPSIS

       bool imagejpeg (resource  $image, [string  $filename], [int  $quality])

DESCRIPTION

       imagejpeg(3) creates a JPEG file from the given $image.

PARAMETERS

	      o $
		image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).

	      o $filename
		-The path to save the file to. If not set or NULL, the raw image stream will be outputted directly. To skip this argument in order
		to provide the $quality parameter, use NULL.

	      o $quality
		-$quality is optional, and ranges from 0 (worst quality, smaller file) to 100 (best quality, biggest file).  The  default  is  the
		default IJG quality value (about 75).

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Outputting a JPEG image

	      <?php
	      // Create a blank image and add some text
	      $im = imagecreatetruecolor(120, 20);
	      $text_color = imagecolorallocate($im, 233, 14, 91);
	      imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

	      // Set the content type header - in this case image/jpeg
	      header('Content-Type: image/jpeg');

	      // Output the image
	      imagejpeg($im);

	      // Free up memory
	      imagedestroy($im);
	      ?>

	      The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Outputting a JPEG image

       Example #2

	      Saving a JPEG image

	      <?php
	      // Create a blank image and add some text
	      $im = imagecreatetruecolor(120, 20);
	      $text_color = imagecolorallocate($im, 233, 14, 91);
	      imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

	      // Save the image as 'simpletext.jpg'
	      imagejpeg($im, 'simpletext.jpg');

	      // Free up memory
	      imagedestroy($im);
	      ?>

       Example #3

	      Outputting the image at 75% quality

	      <?php
	      // Create a blank image and add some text
	      $im = imagecreatetruecolor(120, 20);
	      $text_color = imagecolorallocate($im, 233, 14, 91);
	      imagestring($im, 1, 5, 5,  'A Simple Text String', $text_color);

	      // Set the content type header - in this case image/jpeg
	      header('Content-Type: image/jpeg');

	      // Skip the filename parameter using NULL, then set the quality to 75%
	      imagejpeg($im, NULL, 75);

	      // Free up memory
	      imagedestroy($im);
	      ?>

NOTES

       Note

	      JPEG support is only available if PHP was compiled against GD-1.8 or later.

       Note

	       If you want to output Progressive JPEGs, you need to set interlacing on with imageinterlace(3).

SEE ALSO

       imagepng(3), imagegif(3), imagewbmp(3), imageinterlace(3), imagetypes(3).

PHP Documentation Group 													      IMAGEJPEG(3)