We run node.js CLI script from PHP with Symfony Process.
The script always print whole response as JSON in one line.
The response is somehow truncated on 512 characters.
I only found that xdebug.var_display_max_data => 512 => 512
in php.ini
but don't see how this is related.
Adapter > Symfony Process > node script.js
A) Test Node script
$ node user-update.js parameters
returns full result in all cases - like 629 chars. B) Test Symfony Process
$process = new Process($cmd);
try {
$process->mustRun();
$response = $process->getOutput();
} catch (ProcessFailedException $e) {
$response = $e->getMessage();
}
echo $response;
echo PHP_EOL;
echo strlen($response);
$cmd = 'node user-update.js parameters';
- truncated to 512. $cmd = 'php -r \\'for($i=0; $i<520; $i++){ echo "."; }\\'';
- does not truncate. $cmd = 'cat long_one_line.txt';
- print full file. 1650 chars in one line. C) Try with PHP shell functions
$response = shell_exec($cmd); // response is truncated to 512
system($cmd, $returnVal); // print directly to STDOut, truncated to 512
What could be the cause and solution?
I suspect your process is ending before the buffer can be read by PHP.
As a work-around you can add something like this:
// The `| cat` at the end of this line means we wait for
// cat's process to end instead of node's process.
$process = new Process('node user-update.js parameters | cat');
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