看起来你的命令被单引号包围了.我想如果你删除它们，你的命令应该运行.

shell_exec 返回您运行的命令的输出.为了进一步诊断，将输出存储在一个变量中，然后打印出来:

$output = shell_exec($runCMD);echo '
'.$输出.'</pre>';

确保您启用正在运行的脚本.该功能默认关闭.您必须在要运行 PowerShell 脚本的每台机器上启用脚本的执行.运行 about help_signing 以获取更多信息.

Microsoft 建议运行 Set-ExecutionPolicy RemoteSigned -Scope LocalMachine.这允许机器上的所有用户帐户毫无问题地运行本地脚本，但需要确认才能运行从 Internet 下载的脚本.这需要在管理提示中运行.如果您运行的是 64 位操作系统，则需要从 64 位和 32 位 shell 执行此操作.

I'm trying to execute a powershell script from PHP, but it does not seem to work.

The script 'newEvent.ps1' creates an event on the Exchange server.

$psPath = "powershell.exe";
$psDIR = "C:\wamp\www\ant\assets\ps\";
$psScript = "newEvent.ps1";
$runScript = $psDIR. $psScript;
$runCMD = $psPath." ".$runScript." 2>&1"; 

echo "$psPath  $psPath <br>";
echo "$psDIR  $psDIR <br>";
echo "$psScript  $psScript <br>";
echo "$runScript  $runScript <br>";
echo "$runCMD   $runCMD  <br>";

exec( $runCMD,$out,$ret);

echo "<pre>";
print_r($out);
print_r($ret);
echo "</pre>";

It outputs:

$psPath powershell.exe
$psDIR C:wampwwwantassetsps
$psScript newEvent.ps1
$runScript C:wampwwwantassetsps
ewEvent.ps1
$runCMD powershell.exe C:wampwwwantassetsps
ewEvent.ps1 2>&1

Array
(
    [0] => File C:wampwwwantassetsps
ewEvent.ps1 cannot be loaded because the execut
    [1] => ion of scripts is disabled on this system. Please see "get-help about_signing"
    [2] => for more details.
    [3] => At line:1 char:39
    [4] => + C:wampwwwantassetsps
ewEvent.ps1 <<<<
    [5] =>     + CategoryInfo          : NotSpecified: (:) [], PSSecurityException
    [6] =>     + FullyQualifiedErrorId : RuntimeException
    [7] => 
)

If I run powershell.exe C:wampwwwantassetsps ewEvent.ps1 on the command-line, it works fine.

This is the first time im attempting something like this. I ran Set-ExecutionPolicy RemoteSigned -Scope LocalMachine but it still gives me the same error. In fact I ran Set-ExecutionPolicy unristricted, but it's still the same.

It looks like your command is surrounded by single-quotes. I think if you remove them, your command should run.

shell_exec returns the output from the command you run. To further diagnose, store the output in a variable, then print it out:

$output = shell_exec($runCMD);
echo '<pre>' . $output . '</pre>';

Make sure you enable running scripts. That capability is turned off by default. You have to enable the execution of scripts on each machine you want to run PowerShell scripts. Run about help_signing for more information.

Microsoft recommends running Set-ExecutionPolicy RemoteSigned -Scope LocalMachine. This allows all user accounts on a machine to run local scripts without issue, but requires confirmation to run scripts downloaded from the internet. This needs to be run in an administrative prompt. If you are running a 64-bit operating system, you'll need to do this from both a 64-bit and 32-bit shell.