PHP proc_open 不起作用 - 给我 "Missing handle qualifier in array"

Question

Warning: proc_open(): Missing handle qualifier in array in C:\...\updatedots.php on line 102

我正在尝试打开记事本并在 2 秒后将其关闭。这是我的代码:

$descriptorspec = array(
    0 => array("pipe" => "r"),
    1 => array("pipe" => "w"),
    2 => array("file" => "logs/errors.txt")
);

// Create child and start process
$child = array("process" => null, "pipes" => array());
$child["process"] = proc_open("notepad.exe > nul 2>&1", $descriptorspec, $child["pipes"]);

知道这个错误的含义和原因吗？

Answer 1

它不是0 => array("pipe"=> "r")而是0 => array("pipe", "r") ^^

此外，在提供文件名时，您需要指定要使用的模式。这适用于我的机器:

$descriptorspec = array(
    0 => array("pipe", "r"),
    1 => array("pipe", "w"),
    2 => array("file", "logs/errors.txt", "a") ); 
// Create child and start process 
$child = array("process" => null, "pipes" => null); 
$child["process"] = proc_open("notepad.exe > nul 2>&1", $descriptorspec, $child["pipes"]);