我在将环境变量传递给使用proc_open打开的进程时遇到问题。 我在http://us2.php.net/manual/en/function.proc-open.php
上找到了以下示例<?php
$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("file", "/tmp/error-output.txt", "a") // stderr is a file to write to
);
$cwd = '/tmp';
$env = array('some_option' => 'aeiou');
$process = proc_open('php', $descriptorspec, $pipes, $cwd, $env);
if (is_resource($process)) {
// $pipes now looks like this:
// 0 => writeable handle connected to child stdin
// 1 => readable handle connected to child stdout
// Any error output will be appended to /tmp/error-output.txt
fwrite($pipes[0], '<?php print_r($_ENV); ?>');
fclose($pipes[0]);
echo stream_get_contents($pipes[1]);
fclose($pipes[1]);
// It is important that you close any pipes before calling
// proc_close in order to avoid a deadlock
$return_value = proc_close($process);
echo "command returned $return_value\n";
}
?>
示例应该像文档说的那样回显env数组。但是在我的机器上(PHP 5.4.6-1ubuntu1.4(cli)),回显的数组是空的。是否有一些禁止env var传递给进程的Suhosin或php.ini限制?我不知道。
答案 0 :(得分:1)
如果$_ENV
为空,您应该查看variables_order
ini设置,并确保该值包含E
但是,您可以改为使用$_SERVER
:
fwrite($pipes[0], '<?php print_r($_SERVER); ?>');
它也将包含环境变量,应该在99.999%
个服务器上启用(我猜)
答案 1 :(得分:1)
集
variables_order = "EGPCS"
在你的php.ini
中