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POGet PHP to update with every line returned from a shell command
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copied!<p><strong>Background:</strong> I'm trying to write a shell script using php that will automatically checkout a couple of large SVN repos. I am also using the PEAR console progress bar class to display the progress of the checkout (not totally necessary, but the thing that prompted my question).</p> <p><strong>Question:</strong> Is there a way to run a loop that will update with every line output to STDIN on the commandline?</p> <p>If I do</p> <pre><code><?php shell_exec("svn co svn://my.repo.com/repo/trunk"); ?> </code></pre> <p>I get back all of the output from the command in a giant string. Trying a loop like </p> <pre><code> <?php $bar = new Console_ProgressBar('%fraction% [%bar%] %percent% | %elapsed% :: %estimate%', '=>', ' ', 80, $total); $bar->display(0); stream_set_blocking(STDIN, 0); $output = array(); $return = ''; exec("svn co $svnUrl $folder", $output, $return); while (!isset($return)) { $bar->update(count($output)); } $bar->erase(); ?> </code></pre> <p>will display the bar but not update.</p> <p>Any solutions?</p> <p><strong>========================= UPDATE =======================================</strong></p> <p>Here's the working code I came up with based on the answer (for future reference):</p> <pre><code> <?php $bar = new Console_ProgressBar('%fraction% [%bar%] %percent% | %elapsed% :: %estimate%', '=>', ' ', 80, $total); $handle = popen("/usr/bin/svn co $svnUrl $folder", 'r'); $elapsed = 0; $bar->display($elapsed); while ($line = fgets($handle)) { $elapsed++; $bar->update($elapsed); } pclose($handle); ?> </code></pre>

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