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Homephp教程php手册PHP命令行如何判断有管道数据输入

PHP命令行如何判断有管道数据输入

Jun 06, 2016 pm 08:08 PM
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PHP的STDIN是阻塞操作,直接读取内容的话会造成阻塞.如下代码会一直运行直到有数据输入: $data = stream_get_contents(STDIN); 按理可以通过声明stream_set_blocking(STDIN, FALSE)来操作: stream_set_blocking(STDIN, FALSE);$data = stream_get_contents(ST

PHP的STDIN是阻塞操作,直接读取内容的话会造成阻塞.如下代码会一直运行直到有数据输入:

$data = stream_get_contents(STDIN);

按理可以通过声明stream_set_blocking(STDIN, FALSE)来操作:

stream_set_blocking(STDIN, FALSE);
$data = stream_get_contents(STDIN);

运行依旧不行,其实这是一个Bug,描述:https://bugs.php.net/bug.php?id=34972

通过测试发现,可用通过ftell函数获取STDIN文件句柄指针读/写的位置来判断.

if(ftell(STDIN)===0){
    $data = stream_get_contents(STDIN);
}
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