ob_get_contents

(PHP 4, PHP 5)

ob_get_contents — Return the contents of the output buffer

说明

string ob_get_contents ( void )

Gets the contents of the output buffer without clearing it.

返回值

This will return the contents of the output buffer or FALSE, if output buffering isn't active.

范例

Example#1 A simple ob_get_contents() example


<?php

ob_start();

echo "Hello ";

$out1 = ob_get_contents();

echo "World";

$out2 = ob_get_contents();

ob_end_clean();

var_dump($out1, $out2);
?>

上例将输出：

string(6) "Hello "
string(11) "Hello World"

参见

add a note User Contributed Notes
ob_get_contents

m227 ( at ) poczta dot onet dot pl
24-Feb-2005 10:53


if you use ob_start with a callback function as a parameter, and that function changes ob string (as in example in manual) don't expect that ob_get_contents will return changed ob.

it will work as you would use ob_start with no parameter at all. So don't be confused.

http://www.francescosaf.altervista.org
08-Feb-2005 06:04


transfer image, another method (alternative to fsockopen or function socket) :



server(192.168.0.1)

makeimage.php

       ...........

       ...........

       $nameimage="xxxx.jpg"

       $comand=exec("plotvelocity.sh $nameimage $paramater1 $paramater2");

       ob_start();

        readfile($nameimage);

        $image_data = ob_get_contents();

        ob_end_clean();

        echo $image_data;

        unlink($nameimage);



Client  (192.168.0.2)

  $bild="images/newimage2.gif";

  $host="192.168.0.1";

  $url=file_get_contents("http://$host/makeimage.php?$querystring");

  $fp = fopen("$bild", 'wb');

  fwrite($fp, $url);

  fclose($fp);

  echo '<img src="'.$bild.'">';



naturally you can transfer whichever thing and not only images

add a note

ob_get_flush

ob_get_clean

Last updated: Sun, 25 Nov 2007