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<?php
/*
* This file is part of the GlobalState package.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\GlobalState;
/**
* Exports parts of a Snapshot as PHP code.
*/
class CodeExporter
{
/**
* @param Snapshot $snapshot
* @return string
*/
public function constants(Snapshot $snapshot)
{
$result = '';
foreach ($snapshot->constants() as $name => $value) {
$result .= sprintf(
'if (!defined(\'%s\')) define(\'%s\', %s);' . "\n",
$name,
$name,
$this->exportVariable($value)
);
}
return $result;
}
/**
* @param Snapshot $snapshot
* @return string
*/
public function iniSettings(Snapshot $snapshot)
{
$result = '';
foreach ($snapshot->iniSettings() as $key => $value) {
$result .= sprintf(
'@ini_set(%s, %s);' . "\n",
$this->exportVariable($key),
$this->exportVariable($value)
);
}
return $result;
}
/**
* @param mixed $variable
* @return string
*/
private function exportVariable($variable)
{
if (is_scalar($variable) || is_null($variable) ||
(is_array($variable) && $this->arrayOnlyContainsScalars($variable))) {
return var_export($variable, true);
}
return 'unserialize(' . var_export(serialize($variable), true) . ')';
}
/**
* @param array $array
* @return bool
*/
private function arrayOnlyContainsScalars(array $array)
{
$result = true;
foreach ($array as $element) {
if (is_array($element)) {
$result = self::arrayOnlyContainsScalars($element);
} elseif (!is_scalar($element) && !is_null($element)) {
$result = false;
}
if ($result === false) {
break;
}
}
return $result;
}
}