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What happened last week in Symfony?
This week, the new Symfony 2.3 branch was created. In addition, the first Symfony 2.3 release candidate version was published, which includes tons of great small improvements. Lastly, one of the biggest Symfony events of the year, the Symfony Live Portland 2013 conference, will take place next week.
Upcoming EventsThe Symfony Community organizes events all over the world on a regular basis. Here are the next ones.
France, Montpellier — eZ UnConference #2
from May 27, 2013 to May 29, 2013
Germany, München — Symfony User Group München
on June 05, 2013, from 18:30 to 22:30
Germany, Köln — Symfony User Group Cologne steht an!
on June 05, 2013, from 19:00 to 22:00
Spain, Madrid — deSymfony 2013
from June 21, 2013 to June 23, 2013 - About
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The Process Component
The Process Component¶
The Process Component executes commands in sub-processes.
Installation¶
You can install the component in many different ways:
- Use the official Git repository (https://github.com/symfony/Process);
- Install it via Composer (
symfony/processon Packagist).
Usage¶
The Process class allows you to execute
a command in a sub-process:
1 2 3 4 5 6 7 8 9 10 | use Symfony\Component\Process\Process;
$process = new Process('ls -lsa');
$process->setTimeout(3600);
$process->run();
if (!$process->isSuccessful()) {
throw new \RuntimeException($process->getErrorOutput());
}
print $process->getOutput();
|
The run() method takes care
of the subtle differences between the different platforms when executing the
command.
When executing a long running command (like rsync-ing files to a remote
server), you can give feedback to the end user in real-time by passing an
anonymous function to the
run() method:
1 2 3 4 5 6 7 8 9 10 | use Symfony\Component\Process\Process;
$process = new Process('ls -lsa');
$process->run(function ($type, $buffer) {
if ('err' === $type) {
echo 'ERR > '.$buffer;
} else {
echo 'OUT > '.$buffer;
}
});
|
If you want to execute some PHP code in isolation, use the PhpProcess
instead:
1 2 3 4 5 6 7 | use Symfony\Component\Process\PhpProcess;
$process = new PhpProcess(<<<EOF
<?php echo 'Hello World'; ?>
EOF
);
$process->run();
|
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