ob_stat, ob_get_contents , ob_end_clean 예제 > php

$out01 : Hello
$out02 : Hello World
$out03 : Hello World !!!

<?
ob_start(); // 버퍼링 시작
echo "Hello ";
$out1 = ob_get_contents(); // 버퍼 내용을 변수에 넘겨줌

echo "World";
$out2 = ob_get_contents();

echo " !!!";
$out3 = ob_get_contents();

ob_end_clean();// 버퍼 비우고 버퍼링 종료

echo "\$out01 : ".$out1."<br />";
echo "\$out02 : ".$out2."<br />";
echo "\$out03 : ".$out3;
?>

$out01 : --Hello World--
$out02 : Hello World !!!

<?
ob_start();
echo "Hello ";

    ob_start(); //중첩된 버퍼링 시작
        echo "--Hello World--";
        $out01 = ob_get_contents();
    ob_end_clean(); // 중첩된 버퍼 비우고 버퍼링 종료

echo " World !!!";
$out02 = ob_get_contents();
ob_end_clean();
echo "\$out01 : ".$out01."<br />";
echo "\$out02 : ".$out02;
?>

Hello World !!!

<?
ob_start();
  echo "Hello ";
  echo "World";
  echo " !!!";
ob_end_flush();

ob_start();
  echo "--Hello ";
  echo "World";
  echo " !!!--";
ob_end_clean();
?>