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Is it possible to retrieve information from virtual machine manager using a php code? i tried through exec commands but couldn't get anything in browser as result. Please any help to complete this task.

Am using Ubuntu server 11.04 and kvm as hyper-visor. I have installed virtual machine manager.

Please don't suggest any tool to install.

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What is the code you are trying to use> – hexafraction Nov 7 '12 at 11:32
function vmstatus() { exec("/usr/bin/virsh list --all | tr -s ' '| cut -f3 -d' ' | sed '1,2d' ",$test); exec("/usr/bin/virsh list --all | tr -s ' '| cut -f4 -d' ' | sed '1,2d' ",$testa); foreach($testa as $status) { foreach($test as $virshlist) { echo "<tr><td>".$virshlist."</td><td>".$status."</td></tr>\n"; } } } – Poorni Ma Nov 7 '12 at 11:35


You'll need to use an array to get output.

So, use the following code:

$result=[]; // Create an array
exec('your command line', &$result);  // Remember the & before the result as it ***IS A REFERENCE***
//DO whatever with your result

The problem is that you didn't pass your result array as a reference.

Or, use shell_exec, where your return value is everything returned:


You can also use backticks:


Or, use popen(:

Create a new pointer with:

$handle = popen("/bin/ls", "r");

and then read it:

$read = fread($handle);

and close with:


It will block execution until the output stops.

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Thanks for info but i already tried those things.echo "VM List: "; $vm = shell_exec('virsh list'); echo "<pre>$vm</pre>"; but am not getting any output. – Poorni Ma Nov 7 '12 at 11:39
Is it need any connect code as like connecting with sql for virsh to be connected with php code? – Poorni Ma Nov 7 '12 at 11:42
@PoorniMa No, but you can try to use popen( as I will show in my answer. – hexafraction Nov 7 '12 at 12:08
can you give complete code – Poorni Ma Nov 7 '12 at 12:13
@PoorniMa See edits below popen( heading in my answer. – hexafraction Nov 7 '12 at 12:15

PHP functions like exec() or shell_exec() won't help because libvirt executes in root mode, while PHP executes as www-data user. We can give www-data root privileges, but there may be some security issues in that case. So best way is to use libvirt-php API. For example, to list all the VM in php:

     $conn = libvirt_connect('null', false);
     $doms = libvirt_list_domains($conn);


This will execute smoothly if libvirt is listening on a TCP port. To make libvirt listening on a tcp port, this question will help: I can't use libvirt with listen TCP

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