无密PHP+Go研发仿简书实战高并发高可用微服务架构醉里挑灯看剑
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/84f4e60426e54b0d8b7e460c5f3ed300~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1728206315&x-signature=UFwsQrbt%2FId06L4AWDLhiVoKV1s%3D" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">本章<span style="color: black;">重点</span>介绍PHP的基本语法，<span style="color: black;">认识</span>基本的PHP对接下来的学习非常重要。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">逃到PHP:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">PHP解析引擎需要一种<span style="color: black;">办法</span>来区分PHP代码和页面的其他元素。这种机制被<span style="color: black;">叫作</span>为“逃到PHP”。有四种<span style="color: black;">办法</span><span style="color: black;">能够</span>做到这一点:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">典型的PHP标签:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">PHP标签最<span style="color: black;">平常</span>的有效样式是(<span style="color: black;">举荐</span>样式):</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">倘若</span><span style="color: black;">运用</span>这种样式，<span style="color: black;">能够</span><span style="color: black;">保证</span>标签总是能够被正确解释。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">短路-开路(SGML型)标签:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">或</span>短路-开路标志看起来像<span style="color: black;">这般</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">正如所料，要<span style="color: black;">运用</span>短标签，必须做两件事之一，让PHP识别这个标签:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">选取</span>- enable-short-tags-tags配置选项来配置PHP。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">记录php.ini文件中设置的short_open_tag。必须禁用该选项来解析XML和PHP，<span style="color: black;">由于</span>XML标记<span style="color: black;">运用</span>相同的语法。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">ASP样式标记:</p><img src="https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/530b8863b4ab4263b6a45dfa588e716e~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1728206315&x-signature=KpVuOzPt3O23kbn%2Bh2bgj82vHyA%3D" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">ASP样式标记是一种模仿<span style="color: black;">运用</span>动态服务器页面来描述代码块的标记。ASP样式的标记如下所示:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">要<span style="color: black;">运用</span>ASP样式的标记，您需要在php.ini文件中设置配置选项。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">HTML标记:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">HTML标签看起来像<span style="color: black;">这般</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">...</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">PHP的注释代码:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">注释是程序中仅存在于人类阅读器中的部分，在程序结果<span style="color: black;">表示</span>之前被剥离。PHP中的注释有两种格式:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">单行注释:它们<span style="color: black;">一般</span>用于简短的解释或<span style="color: black;">关联</span>的本地代码注释。下面是一个单行注释的例子。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">#这是一个评论，<span style="color: black;">况且</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">#这是注释的第二行</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">//这<span style="color: black;">亦</span>是评论。<span style="color: black;">每一个</span>样式仅注释</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">打印“带有单行注释的示例”；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">马鞭></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">多行打印:以下是在单个print语句中打印多行的示例:</p><img src="https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/8158bd0ea0ca4dbc8f3c2bc9befc10a7~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1728206315&x-signature=TZ1pifml8Rslz2OOrOM5QRbfB%2BU%3D" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">#第一个例子</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">打印</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这<span style="color: black;">运用</span>“here document”语法来输出</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">运用</span>$变量插值的多行。<span style="color: black;">重视</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这儿</span>的文档结束符必须出<span style="color: black;">此刻</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">仅有</span>分号的行，<span style="color: black;">无</span>多余的空格！</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">结束；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">#第二个例子</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">打印“此跨度</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">多行。换行符将是</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">输出<span style="color: black;">亦</span><span style="color: black;">同样</span>”；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">马鞭></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">多行注释:<span style="color: black;">一般</span>用于在需要时<span style="color: black;">供给</span>伪代码算法和更<span style="color: black;">仔细</span>的解释。多行注释<span style="color: black;">这儿</span>是多行注释的例子，和C语言<span style="color: black;">同样</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">/*这是带有multiline的注释</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">作者:穆罕默德·穆赫塔希姆</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">目的:多行注释演示</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">主题:PHP</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">*/</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">打印“带有多行注释的示例”；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">马鞭></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">PHP空白不<span style="color: black;">敏锐</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">然则</span>空白输入<span style="color: black;">一般</span>在屏幕上是看不到的，<span style="color: black;">包含</span>空格、制表符、回车(行尾字符)等。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">PHP对空格的不<span style="color: black;">敏锐</span><span style="color: black;">寓意</span>着一行中有多少个空格字符并不重要。一个空白字符与许多字符<span style="color: black;">拥有</span>相同的效果。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">例如，以下<span style="color: black;">每一个</span>PHP语句都指定sum变量$four of 2 +2是等价的:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">$四= 2+2；//单个空格</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">四美元=</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">四美元=</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">2+</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">2;//多行</p>
你的话深深触动了我，仿佛说出了我心里的声音。
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