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Fix Inconsistent Exit Status in proc_get_status for PHP Versions Below 8.3 #53820

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Fix Inconsistent Exit Status in proc_get_status for PHP Versions Below 8.3 #53820

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Cache exitcode on PHP 8.2 and lower
Luc45 Feb 7, 2024
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16 changes: 16 additions & 0 deletions src/Symfony/Component/Process/Process.php
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Original file line number Diff line number Diff line change
Expand Up @@ -1289,8 +1289,24 @@ protected function updateStatus(bool $blocking): void
}

$this->processInformation = proc_get_status($this->process);

$running = $this->processInformation['running'];

// In PHP < 8.3, "proc_get_status" only returns the correct exit status on the first call.
// Subsequent calls return -1 as the process is discarded. This workaround caches the first
// retrieved exit status for consistent results in later calls, mimicking PHP 8.3 behavior.
if (version_compare(\PHP_VERSION, '8.3.0', '<')) {
static $cachedExitCode = null;

if (null === $cachedExitCode && !$running && -1 !== $this->processInformation['exitcode']) {
$cachedExitCode = $this->processInformation['exitcode'];
}

if (null !== $cachedExitCode && !$running && -1 === $this->processInformation['exitcode']) {
$this->processInformation['exitcode'] = $cachedExitCode;
}
}

$this->readPipes($running && $blocking, '\\' !== \DIRECTORY_SEPARATOR || !$running);

if ($this->fallbackStatus && $this->isSigchildEnabled()) {
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