TimeTrex Community Edition v16.2.0
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346
vendor/sebastian/exporter/src/Exporter.php
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346
vendor/sebastian/exporter/src/Exporter.php
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<?php declare(strict_types=1);
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/*
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* This file is part of sebastian/exporter.
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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\Exporter;
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use function bin2hex;
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use function count;
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use function function_exists;
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use function get_class;
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use function get_resource_type;
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use function gettype;
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use function implode;
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use function ini_get;
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use function ini_set;
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use function is_array;
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use function is_float;
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use function is_object;
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use function is_resource;
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use function is_string;
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use function mb_strlen;
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use function mb_substr;
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use function preg_match;
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use function spl_object_hash;
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use function sprintf;
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use function str_repeat;
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use function str_replace;
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use function strlen;
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use function substr;
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use function var_export;
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use SebastianBergmann\RecursionContext\Context;
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use SplObjectStorage;
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/**
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* A nifty utility for visualizing PHP variables.
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*
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* <code>
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* <?php
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* use SebastianBergmann\Exporter\Exporter;
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*
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* $exporter = new Exporter;
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* print $exporter->export(new Exception);
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* </code>
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*/
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class Exporter
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{
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/**
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* Exports a value as a string.
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*
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* The output of this method is similar to the output of print_r(), but
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* improved in various aspects:
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*
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* - NULL is rendered as "null" (instead of "")
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* - TRUE is rendered as "true" (instead of "1")
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* - FALSE is rendered as "false" (instead of "")
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* - Strings are always quoted with single quotes
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* - Carriage returns and newlines are normalized to \n
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* - Recursion and repeated rendering is treated properly
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*
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* @param int $indentation The indentation level of the 2nd+ line
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*
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* @return string
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*/
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public function export($value, $indentation = 0)
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{
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return $this->recursiveExport($value, $indentation);
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}
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/**
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* @param array<mixed> $data
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* @param Context $context
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*
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* @return string
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*/
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public function shortenedRecursiveExport(&$data, Context $context = null)
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{
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$result = [];
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$exporter = new self();
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if (!$context) {
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$context = new Context;
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}
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$array = $data;
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$context->add($data);
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foreach ($array as $key => $value) {
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if (is_array($value)) {
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if ($context->contains($data[$key]) !== false) {
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$result[] = '*RECURSION*';
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} else {
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$result[] = sprintf(
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'array(%s)',
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$this->shortenedRecursiveExport($data[$key], $context)
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);
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}
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} else {
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$result[] = $exporter->shortenedExport($value);
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}
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}
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return implode(', ', $result);
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}
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/**
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* Exports a value into a single-line string.
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*
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* The output of this method is similar to the output of
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* SebastianBergmann\Exporter\Exporter::export().
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*
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* Newlines are replaced by the visible string '\n'.
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* Contents of arrays and objects (if any) are replaced by '...'.
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*
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* @return string
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*
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* @see SebastianBergmann\Exporter\Exporter::export
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*/
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public function shortenedExport($value)
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{
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if (is_string($value)) {
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$string = str_replace("\n", '', $this->export($value));
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if (function_exists('mb_strlen')) {
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if (mb_strlen($string) > 40) {
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$string = mb_substr($string, 0, 30) . '...' . mb_substr($string, -7);
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}
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} else {
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if (strlen($string) > 40) {
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$string = substr($string, 0, 30) . '...' . substr($string, -7);
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}
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}
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return $string;
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}
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if (is_object($value)) {
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return sprintf(
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'%s Object (%s)',
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get_class($value),
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count($this->toArray($value)) > 0 ? '...' : ''
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);
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}
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if (is_array($value)) {
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return sprintf(
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'Array (%s)',
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count($value) > 0 ? '...' : ''
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);
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}
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return $this->export($value);
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}
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/**
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* Converts an object to an array containing all of its private, protected
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* and public properties.
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*
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* @return array
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*/
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public function toArray($value)
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{
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if (!is_object($value)) {
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return (array) $value;
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}
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$array = [];
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foreach ((array) $value as $key => $val) {
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// Exception traces commonly reference hundreds to thousands of
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// objects currently loaded in memory. Including them in the result
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// has a severe negative performance impact.
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if ("\0Error\0trace" === $key || "\0Exception\0trace" === $key) {
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continue;
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}
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// properties are transformed to keys in the following way:
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// private $property => "\0Classname\0property"
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// protected $property => "\0*\0property"
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// public $property => "property"
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if (preg_match('/^\0.+\0(.+)$/', (string) $key, $matches)) {
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$key = $matches[1];
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}
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// See https://github.com/php/php-src/commit/5721132
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if ($key === "\0gcdata") {
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continue;
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}
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$array[$key] = $val;
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}
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// Some internal classes like SplObjectStorage don't work with the
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// above (fast) mechanism nor with reflection in Zend.
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// Format the output similarly to print_r() in this case
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if ($value instanceof SplObjectStorage) {
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foreach ($value as $key => $val) {
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$array[spl_object_hash($val)] = [
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'obj' => $val,
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'inf' => $value->getInfo(),
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];
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}
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}
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return $array;
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}
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/**
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* Recursive implementation of export.
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*
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* @param mixed $value The value to export
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* @param int $indentation The indentation level of the 2nd+ line
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* @param \SebastianBergmann\RecursionContext\Context $processed Previously processed objects
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*
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* @return string
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*
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* @see SebastianBergmann\Exporter\Exporter::export
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*/
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protected function recursiveExport(&$value, $indentation, $processed = null)
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{
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if ($value === null) {
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return 'null';
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}
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if ($value === true) {
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return 'true';
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}
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if ($value === false) {
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return 'false';
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}
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if (is_float($value)) {
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$precisionBackup = ini_get('precision');
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ini_set('precision', '-1');
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try {
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$valueStr = (string) $value;
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if ((string) (int) $value === $valueStr) {
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return $valueStr . '.0';
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}
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return $valueStr;
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} finally {
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ini_set('precision', $precisionBackup);
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}
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}
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if (gettype($value) === 'resource (closed)') {
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return 'resource (closed)';
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}
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if (is_resource($value)) {
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return sprintf(
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'resource(%d) of type (%s)',
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$value,
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get_resource_type($value)
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);
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}
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if (is_string($value)) {
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// Match for most non printable chars somewhat taking multibyte chars into account
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if (preg_match('/[^\x09-\x0d\x1b\x20-\xff]/', $value)) {
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return 'Binary String: 0x' . bin2hex($value);
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}
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return "'" .
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str_replace(
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'<lf>',
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"\n",
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str_replace(
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["\r\n", "\n\r", "\r", "\n"],
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['\r\n<lf>', '\n\r<lf>', '\r<lf>', '\n<lf>'],
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$value
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)
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) .
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"'";
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}
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$whitespace = str_repeat(' ', 4 * $indentation);
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if (!$processed) {
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$processed = new Context;
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}
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if (is_array($value)) {
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if (($key = $processed->contains($value)) !== false) {
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return 'Array &' . $key;
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}
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$array = $value;
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$key = $processed->add($value);
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$values = '';
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if (count($array) > 0) {
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foreach ($array as $k => $v) {
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$values .= sprintf(
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'%s %s => %s' . "\n",
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$whitespace,
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$this->recursiveExport($k, $indentation),
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$this->recursiveExport($value[$k], $indentation + 1, $processed)
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);
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}
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$values = "\n" . $values . $whitespace;
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}
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return sprintf('Array &%s (%s)', $key, $values);
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}
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if (is_object($value)) {
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$class = get_class($value);
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if ($hash = $processed->contains($value)) {
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return sprintf('%s Object &%s', $class, $hash);
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}
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$hash = $processed->add($value);
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$values = '';
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$array = $this->toArray($value);
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if (count($array) > 0) {
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foreach ($array as $k => $v) {
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$values .= sprintf(
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'%s %s => %s' . "\n",
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$whitespace,
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$this->recursiveExport($k, $indentation),
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$this->recursiveExport($v, $indentation + 1, $processed)
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);
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}
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$values = "\n" . $values . $whitespace;
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}
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return sprintf('%s Object &%s (%s)', $class, $hash, $values);
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}
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return var_export($value, true);
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}
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}
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