56 lines
2.0 KiB
PHP
56 lines
2.0 KiB
PHP
<?php
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function parseAdditionalAttributes($additionalAttributesString)
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{
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if (empty($additionalAttributesString)) {
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return [];
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}
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$attributes = [];
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$length = strlen($additionalAttributesString);
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$i = 0;
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while ($i < $length) {
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// 寻找下一个属性名（字母数字下划线组成）
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if (preg_match('/([a-zA-Z0-9_]+)=/', $additionalAttributesString, $matches, PREG_OFFSET_CAPTURE, $i)) {
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$attributeName = $matches[1][0];
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$nameStart = $matches[1][1];
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$valueStart = $nameStart + strlen($attributeName) + 1; // +1 for '='
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// 寻找下一个属性开始位置来确定当前属性值的结束位置
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$nextAttrPos = null;
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if (preg_match('/,([a-zA-Z0-9_]+)=/', $additionalAttributesString, $nextMatches, PREG_OFFSET_CAPTURE, $valueStart)) {
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$nextAttrPos = $nextMatches[0][1]; // 逗号的位置
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}
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// 提取属性值
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if ($nextAttrPos !== null) {
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$value = substr($additionalAttributesString, $valueStart, $nextAttrPos - $valueStart);
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$i = $nextAttrPos + 1; // 跳过逗号
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} else {
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// 最后一个属性，取到字符串末尾
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$value = substr($additionalAttributesString, $valueStart);
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$i = $length; // 结束循环
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}
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//去掉导入数据中的_X000D_
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$attributes[mb_strtolower(trim($attributeName))] = preg_replace('/_x([0-9a-fA-F]{4})_/', '', trim($value));
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;
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} else {
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// 没有找到更多属性，结束
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break;
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}
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}
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return $attributes;
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}
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$attribute = 'document_date=9/27/19,document_version=1.1.0,document_path=/media/files/minireview/MRDX20359CN-Airway_Epithelial_Cells.pdf,parent_skus=00218,05001,05021,05022,05008,05040,00218CA.2';
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$str = '';
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foreach (parseAdditionalAttributes($attribute) as $key => $value) {
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$str .= $key . '=' . $value . ',';
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}
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echo rtrim($str, ',').PHP_EOL;
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