diff --git a/components/process.rst b/components/process.rst
index 8444905285f..7bb6b4a9c89 100644
--- a/components/process.rst
+++ b/components/process.rst
@@ -132,7 +132,24 @@ are done doing other stuff::
$process->start();
// ... do other things
+
+ $process->wait();
+
+ // ... do things after the process has finished
+
+.. note::
+
+ The :method:`Symfony\\Component\\Process\\Process::wait` method is blocking,
+ which means that your code will halt at this line until the external
+ process is completed.
+
+:method:`Symfony\\Component\\Process\\Process::wait` takes one optional argument:
+a callback that is called repeatedly whilst the process is still running, passing
+in the output and its type::
+ $process = new Process('ls -lsa');
+ $process->start();
+
$process->wait(function ($type, $buffer) {
if (Process::ERR === $type) {
echo 'ERR > '.$buffer;
@@ -141,12 +158,6 @@ are done doing other stuff::
}
});
-.. note::
-
- The :method:`Symfony\\Component\\Process\\Process::wait` method is blocking,
- which means that your code will halt at this line until the external
- process is completed.
-
Streaming to the Standard Input of a Process
--------------------------------------------
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