我正在尝试使用 Walmart API 来显示有关产品的一些信息。
\n\nAPI 返回一个 json 对象，我将其转换为常规数组，并且只是使用 echo 来显示此数据。
\n\n问题是，当我从 API 获取longDescription变量时，它包含 HTML - 这很好，但它没有被渲染，而是将其全部显示为纯文本。这是我的代码：
echo "<p id=\'longDescription\'>";\n echo $obj[\'longDescription\'];\necho "</p>";\n这是$obj[\'longDescription\']变量中包含的内容：
<br><b>HP 15-ay039wm 15.6" Laptop:</b><br><br><b>Key Features and Benefits:</b>\n<ul>\n <li>15.6" Display<br>HD (1366 x 768) SVA Brightview WLED-backlit Display<br><br></li>\n <li>Intel Core i3-6100U Dual-Core Processor<br>2.3GHz<br><br></li>\n <li>8GB system memory<br>Gives you the power to handle most power-hungry applications and tons of multimedia work<br><br></li>\n <li>1TB Hard Drive<br>Store 666,000 photos, 285,000 songs or 526 hours of HD video and more<br><br></li>\n <li>6 hours of battery life<br>Long-lasting battery life gives you plenty of access to your photos, videos, music and documents<br><br></li>\n <li>Intel HD Graphics 520<br>With up to 4169MB of graphics memory<br><br></li>\n <li>Weight: 4.73 lbs<br>Thin design you can easily take on the road<br><br></li>\n <li>SuperMulti DVD burner<br>Watch movies and read and write CDs and DVDs in multiple formats<br><br></li>\n <li>10/100 Base-T Ethernet, 802.11ac Wireless LAN<br>Connect to a broadband modem with wired Ethernet or wirelessly connect to a WiFi signal or hotspot with the 802.11ac connection built into your PC</li>\n</ul>\n<br><b>Additional Features:</b>\n<ul>\n <li>HP TrueVision HD Webcam</li>\n <li>Multi-Format Digital memory card reader</li>\n <li>Bluetooth</li>\n <li>1 x USB 3.0 port, 2 x USB 2.0 ports, 1 x HDMI out port, 1 x audio out/in jack, 1 x RJ-45 Ethernet port</li>\n <li>3-cell lithium-ion battery</li>\n <li>Dimensions: 0.95" x 15.12" x 10.02"</li>\n <li>Color: Silver</li>\n</ul>\n<br><b>Software:</b>\n<ul>\n <li>Genuine Microsoft Windows 10</li>\n <li>McAfee LiveSafe (30-day trial)</li>\n <li>Backup and Restore options built into Windows allow you to create safety copies of your most important personal files, so you\'re always prepared for the worst</li>\n</ul>\n<br><b>Support and Warranty:</b>\n<ul>\n <li>1-year limited hardware warranty; 24/7 technical assistance available online or toll-free by phone</li>\n <li>Restore discs are not included (unless specified by supplier). We recommend you use the installed software to create your own restore and backup DVD the first week you use the computer.</li>\n</ul>\n<br><b>What\'s In The Box:</b>\n<ul>\n <li>Power cord and AC adapter</li>\n <li>3-cell battery</li>\n <li>Quick Start Guide</li>\n</ul>\n<br><b><i>To see the manufacturer\'s specifications for this product, click <a href="http://i.walmart.com/i/rb/0088989980651.pdf" target="_blank">here</a>.<br><br>To see a list of our PC Accessories, click <a href="http://www.walmart.com/cp/accessories-peripherals/132959" target="_blank">here</a>.<br><br>Trade in your used computer and electronics for more cash to spend at Walmart. Good for your wallet and the environment - click <a href="http://gazelle.com/register_click?campaign=electronics_trade_in&media_type=text&network=walmart&destination_url=http%3A%2F%2Fwalmart.gazelle.com&placement=product_computers&creative=learn_more" target="_blank">here</a>.</i></b><br><br><b>ENERGY STAR<sup>\xc2\xae</sup></b><br>Products that are ENERGY STAR-qualified prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy. The ENERGY STAR name and marks are registered marks owned by the U.S. government, as part of their energy efficiency and environmental activities.\n我不太确定从哪里开始或做什么，我以前从未遇到过这个问题。
\n\n如何将此变量输出为渲染的 HTML？
\n尝试使用html_entity_decode()
\n将所有 HTML 实体转换为其适用的字符
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更准确地说，此函数解码a)对所选文档类型 \xe2\x80\x94 必须有效的所有实体（包括所有\n 数字实体） ，即，对于 XML，此函数不解码命名\n 实体可能在某些 DTD \xe2\x80\x94 中定义，并且
b)其字符位于与所选编码关联的编码字符集中，并且在所选文档类型中是允许的。所有其他实体均保持原样。