php-ffmpeg

<?php

$command='C:\program\ffmpeg.exe -i C:\wamp\www\Project\video\last-child.mp4 -f image2 -vframes 1 C:\wamp\www\Project\thumb\last-child.jpg';
if(Execute($command, $output) != 0)
{
    die($output);
}else{
    echo 'video created!';
}

 function Execute($command, &$output)
{
     $out = array();
     $ret = -1;

     exec($command." 2>&1",$out,$ret);

     foreach($out as $line)
     {
        $output.= $line;
     }
     return $ret;
}
?>