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Progress Helper

2.2 version

Unmaintained

2.3 2.4 2.5 2.6 2.7 2.8 3.0 3.1 3.2

Progress Helper¶

New in version 2.2: The progress helper was added in Symfony 2.2.

When executing longer-running commands, it may be helpful to show progress information, which updates as your command runs:

To display progress details, use the ProgressHelper, pass it a total number of units, and advance the progress as your command executes:

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$progress = $this->getHelperSet()->get('progress'); $progress->start($output, 50); $i = 0; while ($i++ < 50) { // ... do some work // advance the progress bar 1 unit $progress->advance(); } $progress->finish();

The appearance of the progress output can be customized as well, with a number of different levels of verbosity. Each of these displays different possible items - like percentage completion, a moving progress bar, or current/total information (e.g. 10/50):

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$progress->setFormat(ProgressHelper::FORMAT_QUIET); $progress->setFormat(ProgressHelper::FORMAT_NORMAL); $progress->setFormat(ProgressHelper::FORMAT_VERBOSE); $progress->setFormat(ProgressHelper::FORMAT_QUIET_NOMAX); // the default value $progress->setFormat(ProgressHelper::FORMAT_NORMAL_NOMAX); $progress->setFormat(ProgressHelper::FORMAT_VERBOSE_NOMAX);

You can also control the different characters and the width used for the progress bar:

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// the finished part of the bar $progress->setBarCharacter('<comment>=</comment>'); // the unfinished part of the bar $progress->setEmptyBarCharacter(' '); $progress->setProgressCharacter('|'); $progress->setBarWidth(50);

To see other available options, check the API documentation for ProgressHelper.

Caution

For performance reasons, be careful if you set the total number of steps to a high number. For example, if you're iterating over a large number of items, consider setting the redraw frequency to a higher value by calling setRedrawFrequency(), so it updates on only some iterations:

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$progress->start($output, 50000); // update every 100 iterations $progress->setRedrawFrequency(100); $i = 0; while ($i++ < 50000) { // ... do some work $progress->advance(); }