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Bug #67088 exec expect a carriage return
Submitted: 2014-04-16 17:23 UTC Modified: -
From: jakoch at web dot de Assigned:
Status: Open Package: Program Execution
PHP Version: 5.4.27 OS: Windows
Private report: No CVE-ID: None
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 [2014-04-16 17:23 UTC] jakoch at web dot de
Description:
------------
Calling "powershell" via "exec" hangs, when called in browser context.
The same call works on CLI.

Why is a prior echo'ing needed to get it working in the browser?

Issue solved with the workaround provided here:
http://www.php.net/manual/fr/function.exec.php#110617

Test script:
---------------
<?php
$output = array();
$return_code = 0;
// hangs in browser, but works on CLI
exec('powershell "New-Object -com WScript.Shell | Get-Member"', $output);
// works (in browser and on CLI)
//exec('echo . | powershell "New-Object -com WScript.Shell | Get-Member"', $output);

echo "<pre>";
foreach($output as $line) {
    echo $line . PHP_EOL;
}
echo "</pre>";


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