TYPO3 v15 dev-main snapshot ()
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<?php
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Backend\Form\Element;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3\CMS\Core\Utility\MathUtility;
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use TYPO3\CMS\Core\Utility\StringUtility;
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/**
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* Create a widget with a select box where multiple items can be selected
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*
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* This is rendered for config type=select, renderType=selectSingleBox
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*/
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class SelectSingleBoxElement extends AbstractFormElement
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{
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/**
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* Default field controls for this element.
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*
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* @var array
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*/
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protected $defaultFieldControl = [
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'resetSelection' => [
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'renderType' => 'resetSelection',
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],
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];
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/**
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* Default field wizards enabled for this element.
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*
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* @var array
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*/
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protected $defaultFieldWizard = [
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'localizationStateSelector' => [
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'renderType' => 'localizationStateSelector',
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],
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'otherLanguageContent' => [
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'renderType' => 'otherLanguageContent',
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'after' => [
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'localizationStateSelector',
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],
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],
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'defaultLanguageDifferences' => [
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'renderType' => 'defaultLanguageDifferences',
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'after' => [
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'otherLanguageContent',
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],
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],
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];
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/**
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* This will render a selector box element, or possibly a special construction with two selector boxes.
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*
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* @return array As defined in initializeResultArray() of AbstractNode
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*/
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public function render(): array
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{
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$languageService = $this->getLanguageService();
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$resultArray = $this->initializeResultArray();
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$parameterArray = $this->data['parameterArray'];
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// Field configuration from TCA:
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$config = $parameterArray['fieldConf']['config'];
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$selectItems = $parameterArray['fieldConf']['config']['items'];
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$disabled = !empty($config['readOnly']);
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// Get item value as array and make unique, which is fine because there can be no duplicates anyway.
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$itemArray = array_flip($parameterArray['itemFormElValue']);
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$width = $this->formMaxWidth($this->defaultInputWidth);
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$optionElements = [];
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foreach ($selectItems as $item) {
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$value = $item['value'];
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$attributes = [];
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// Selected or not by default
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if (isset($itemArray[$value])) {
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$attributes['selected'] = 'selected';
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unset($itemArray[$value]);
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}
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// Non-selectable element
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if ((string)$value === '--div--') {
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$attributes['disabled'] = 'disabled';
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$attributes['class'] = 'formcontrol-select-divider';
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}
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$optionElements[] = $this->renderOptionElement($value, $item['label'], $attributes);
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}
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$selectItems = $parameterArray['fieldConf']['config']['items'];
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$size = (int)($config['size'] ?? 0);
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$autoSizeMax = (int)($config['autoSizeMax'] ?? 0);
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if ($autoSizeMax > 0) {
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$size = MathUtility::forceIntegerInRange($size, 1);
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$size = MathUtility::forceIntegerInRange(count($selectItems) + 1, $size, $autoSizeMax);
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}
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$selectId = StringUtility::getUniqueId($size === 1 ? 'tceforms-select' : 'tceforms-multiselect');
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$selectElement = $this->renderSelectElement($optionElements, $parameterArray, $config, $selectId, $size);
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$fieldInformationResult = $this->renderFieldInformation();
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$fieldInformationHtml = $fieldInformationResult['html'];
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$resultArray = $this->mergeChildReturnIntoExistingResult($resultArray, $fieldInformationResult, false);
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$fieldControlResult = $this->renderFieldControl();
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$fieldControlHtml = $fieldControlResult['html'];
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$resultArray = $this->mergeChildReturnIntoExistingResult($resultArray, $fieldControlResult, false);
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$fieldWizardResult = $this->renderFieldWizard();
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$fieldWizardHtml = $fieldWizardResult['html'];
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$resultArray = $this->mergeChildReturnIntoExistingResult($resultArray, $fieldWizardResult, false);
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$html = [];
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$html[] = $this->renderLabel($selectId);
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$html[] = '<div class="formengine-field-item t3js-formengine-field-item">';
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$html[] = $fieldInformationHtml;
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$html[] = '<div class="form-control-wrap" style="max-width: ' . $width . 'px">';
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$html[] = '<div class="form-wizards-wrap">';
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$html[] = '<div class="form-wizards-item-element">';
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if (!$disabled) {
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// Add an empty hidden field which will send a blank value if all items are unselected.
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$html[] = '<input type="hidden" name="' . htmlspecialchars($parameterArray['itemFormElName']) . '" value="">';
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}
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$html[] = $selectElement;
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$html[] = '</div>';
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if (!$disabled) {
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if (!empty($fieldControlHtml)) {
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$html[] = '<div class="form-wizards-item-aside form-wizards-item-aside--field-control">';
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$html[] = $fieldControlHtml;
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$html[] = '</div>';
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}
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$html[] = '</div>';
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$html[] = '<div class="form-text">';
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$html[] = '<em>' . htmlspecialchars($languageService->sL('LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.holdDownCTRL')) . '</em>';
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$html[] = '</div>';
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if (!empty($fieldWizardHtml)) {
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$html[] = '<div class="form-wizards-item-bottom">';
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$html[] = $fieldWizardHtml;
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$html[] = '</div>';
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}
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} else {
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$html[] = '</div>';
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}
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$html[] = '</div>';
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$html[] = '</div>';
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$resultArray['html'] = implode(LF, $html);
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return $resultArray;
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}
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/**
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* Renders a <select> element
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*/
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protected function renderSelectElement(array $optionElements, array $parameterArray, array $config, string $selectId, int $size): string
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{
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$attributes = array_merge(
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[
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'name' => $parameterArray['itemFormElName'] . '[]',
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'multiple' => 'multiple',
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'id' => $selectId,
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'class' => 'form-select ',
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'data-formengine-validation-rules' => $this->getValidationDataAsJsonString($config),
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],
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$this->getOnFieldChangeAttrs('change', $parameterArray['fieldChangeFunc'] ?? [])
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);
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if ($size) {
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$attributes['size'] = (string)$size;
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}
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if ($config['readOnly'] ?? false) {
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$attributes['disabled'] = 'disabled';
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}
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$html = [];
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$html[] = '<select ' . GeneralUtility::implodeAttributes($attributes, true) . '>';
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$html[] = implode(LF, $optionElements);
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$html[] = '</select>';
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return implode(LF, $html);
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}
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/**
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* Renders a single <option> element
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*
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* @param string $value The option value
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* @param string $label The option label
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* @param array $attributes Map of attribute names and values
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* @return string
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*/
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protected function renderOptionElement($value, $label, array $attributes = [])
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{
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$attributes['value'] = $value;
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$html = [
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'<option ' . GeneralUtility::implodeAttributes($attributes, true, true) . '>',
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htmlspecialchars($this->appendValueToLabelInDebugMode($label, $value), ENT_COMPAT, 'UTF-8', false),
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'</option>',
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];
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return implode('', $html);
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}
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}
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