我有以下PHP代码打开输出缓冲区,包含一个文件,将其存储在变量中,并清除缓冲区:
ob_start();
include('test.html');
$input=ob_get_clean();
Perl中的等效内容如何?
答案 0 :(得分:4)
$| = 1;
将为当前选定的句柄(默认为STDOUT
)启用禁用缓冲。换句话说,
$| = 1;
在功能上等同于
use IO::Handle qw( ); # Not needed since 5.14.
select()->autoflush(1);
通常意味着
use IO::Handle qw( ); # Not needed since 5.14.
STDOUT->autoflush(1);
答案 1 :(得分:3)
特殊变量$|
。设置为非零时,每次写入或打印后都会刷新缓冲区
答案 2 :(得分:2)
所以相应的是:
# open a file handle try to get test.html
open(my $fh, "<", "test.html") ||
die 'Could not open test.html: '.$!;
# return the currently selected filehandle
select($fh);
#clear the output buffer
select()->autoflush(1);
<强>参考强>