107 lines
2.6 KiB
PHP
107 lines
2.6 KiB
PHP
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<?php declare(strict_types=1);
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/*
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* This file is part of sebastian/global-state.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\GlobalState;
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use const PHP_EOL;
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use function is_array;
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use function is_scalar;
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use function serialize;
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use function sprintf;
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use function var_export;
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final class CodeExporter
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{
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public function constants(Snapshot $snapshot): string
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{
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$result = '';
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foreach ($snapshot->constants() as $name => $value) {
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$result .= sprintf(
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'if (!defined(\'%s\')) define(\'%s\', %s);' . "\n",
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$name,
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$name,
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$this->exportVariable($value),
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);
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}
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return $result;
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}
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public function globalVariables(Snapshot $snapshot): string
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{
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$result = <<<'EOT'
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call_user_func(
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function ()
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{
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foreach (array_keys($GLOBALS) as $key) {
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unset($GLOBALS[$key]);
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}
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}
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);
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EOT;
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foreach ($snapshot->globalVariables() as $name => $value) {
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$result .= sprintf(
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'$GLOBALS[%s] = %s;' . PHP_EOL,
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$this->exportVariable($name),
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$this->exportVariable($value),
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);
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}
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return $result;
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}
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public function iniSettings(Snapshot $snapshot): string
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{
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$result = '';
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foreach ($snapshot->iniSettings() as $key => $value) {
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$result .= sprintf(
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'@ini_set(%s, %s);' . "\n",
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$this->exportVariable($key),
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$this->exportVariable($value),
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);
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}
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return $result;
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}
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private function exportVariable(mixed $variable): string
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{
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if (is_scalar($variable) || null === $variable ||
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(is_array($variable) && $this->arrayOnlyContainsScalars($variable))) {
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return var_export($variable, true);
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}
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return 'unserialize(' . var_export(serialize($variable), true) . ')';
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}
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private function arrayOnlyContainsScalars(array $array): bool
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{
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$result = true;
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foreach ($array as $element) {
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if (is_array($element)) {
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$result = $this->arrayOnlyContainsScalars($element);
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} elseif (!is_scalar($element) && null !== $element) {
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$result = false;
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}
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if ($result === false) {
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break;
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}
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}
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return $result;
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}
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}
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