ob_flush
Also, don't forget that you will need to ob_start() again for any successive calls:
<?php
ob_start();
echo "1";
$content = ob_get_clean();
ob_start(); // This is NECESSARY for the next ob_get_clean() to work as intended.
echo "2";
$content .= ob_get_clean();
echo $content;
?>
Output: 12
Without the second ob_start(), the output is 21 ...
ob_get_clean
(PHP 4 >= 4.3.0, PHP 5)
ob_get_clean — 現在のバッファの内容を取得し、出力バッファを削除する
説明
string ob_get_clean
( void
)
現在のバッファの中身を取得し、出力バッファを削除します。
ob_get_clean() は、基本的に ob_get_contents() および ob_end_clean() を同時に実行するのと同じです。
返り値
出力バッファの内容を返した後で出力のバッファリングを終了します。 出力バッファリングが開始されていない場合は FALSE が返されます。
例
例1 単純な ob_get_clean() の例
<?php
ob_start();
echo "Hello World";
$out = ob_get_clean();
$out = strtolower($out);
var_dump($out);
?>
上の例の出力は以下となります。
string(11) "hello world"
add a note
User Contributed Notes
ob_get_clean
steven at bielik dot com
21-Feb-2011 11:57
56ka dot prog at gmail dot com
13-Sep-2010 05:27
Hi
Warning, this command isn't exactly like ob_get_contents() and ob_end_clean() successively. Sometimes you will have to do these two commands manually.
Today I lost 2 hours to localize that problem and to find the solution -_-'
See you
profix at cms-studio dot net
09-Jul-2008 07:01
Maybe it can be useful
$__ob_stack=array();
function ob_break() {
global $__ob_stack;
while (ob_get_level()>0)
array_push($__ob_stack,ob_get_clean());
}
function ob_continue() {
global $__ob_stack;
while (count($__ob_stack)>0) {
ob_start();
echo array_pop($__ob_stack);
}
}
ob_start();
echo "1"; // now we write to "ob" buffer
ob_break();
echo "2"; // now we write to stdout
ob_continue();
echo "3"; // now we write again to "ob" buffer
$output=ob_get_clean();
echo $output;
// output is 213
egbert teeselink
02-Feb-2008 07:47
If you're trying to capture the output from an included 3rd party script you don't seem to be capturing everything, the following might help:
function ob_end_clean_all()
{
$s = "";
do
{
$s = ob_get_contents() . $s;
} while(ob_end_clean());
return $s;
}
This function closes all nested output bufferings, therefore closing any buffers that the included script does not explicitly close. It's basically a ob_end_clean that sweeps together all the output buffers instead of just the innermost one.
ludvig dot ericson at gmail dot com
10-Aug-2005 07:10
Notice that the function beneath does not catch errors, so throw in an @ before those ob_* calls
webmaster at ragnarokonline dot de
01-Oct-2003 05:21
Running PHP4 < 4.3.0, you can simply add the following to use the function anyway:
<?php
if (!function_exists("ob_get_clean")) {
function ob_get_clean() {
$ob_contents = ob_get_contents();
ob_end_clean();
return $ob_contents;
}
}
?>