كود PHP:
<?php
ob_start(); // start output buffer 1
echo "a"; // fill ob1
ob_start(); // start output buffer 2
echo "b"; // fill ob2
$s1 = ob_get_contents(); // read ob2 ("b")
ob_end_flush(); // flush ob2 to ob1
echo "c"; // continue filling ob1
$s2 = ob_get_contents(); // read ob1 ("a" . "b" . "c")
ob_end_flush(); // flush ob1 to browser
// echoes "b" followed by "abc", as supposed to:
echo "<HR>$s1<HR>$s2<HR>";
?>
و ما معنى buffering فى ال php ??