PHP程序运行Python脚本(接收数据及传参)
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">介绍一下,<span style="color: black;">怎样</span>在php程序中运行Python脚本,</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在php中python程序的运行,<span style="color: black;">重点</span>依靠 程序执行函数,</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这儿</span>说一下三个<span style="color: black;">关联</span>函数:exec(),system() 和 passthru()。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这儿</span><span style="color: black;">重点</span>讲 exec() 函数,介绍<span style="color: black;">运用</span>该函数传递参数,</p>以及<span style="color: black;">怎样</span><span style="color: black;">运用</span>python返回josn数据供php<span style="color: black;">运用</span>。
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">1、</span>exec() — 执行一个<span style="color: black;">外边</span>程序</h3><span style="color: black;"><span style="color: black;">exec</span> ( string $command [, array &$output [, <span style="color: black;">int</span> &$return_var ]] ) : string</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">参数说明</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">command:要执行的命令,其中<span style="color: black;">包含</span>三个子串,<span style="color: black;">第1</span>个子串为<span style="color: black;">运用</span>的当前系统的解释器,第二个子串为所要执行脚本的位置,第三个子串为所需传入的参数不限个数,中间用空格分隔,<span style="color: black;">重视</span>格式。子串间<span style="color: black;">运用</span>空格分割。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">output:<span style="color: black;">倘若</span><span style="color: black;">供给</span>了 output 参数,<span style="color: black;">那样</span>会用命令执行的输出填充此数组,每行输出填充数组中的一个元素。(说明:output 中存放的并非python中return的值,并且所有return的值都不会进行保存,output 中存放的是python脚本中输出的值,即为 print() 函数所输出的所有数据)</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">return_var:<span style="color: black;">倘若</span><span style="color: black;">同期</span><span style="color: black;">供给</span> output 和 return_var 参数,命令执行后的返回状态会被写入到此变量。</p>1、直接运行<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">index.php</p><span style="color: black;"><?php</span><span style="color: black;"><span style="color: black;">$re</span> = <span style="color: black;">exec</span>(<span style="color: black;">python ceshi.py</span>, <span style="color: black;">$out</span>);</span><span style="color: black;">// <span style="color: black;">$re</span> = iconv(<span style="color: black;">gbk</span>, <span style="color: black;">utf-8</span>, <span style="color: black;">$re</span>);</span><span style="color: black;">var_dump(<span style="color: black;">$out</span>);</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;"><br/></span>;</span><span style="color: black;">var_dump(<span style="color: black;">$re</span>);</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">ceshi.py</p><span style="color: black;"><span style="color: black;"><span style="color: black;">def</span> <span style="color: black;">send</span><span style="color: black;">()</span>:</span></span><span style="color: black;"> data = <span style="color: black;">1,2,3,4,5</span></span><span style="color: black;"> print(data)</span><span style="color: black;"><span style="color: black;">if</span> __name__ == <span style="color: black;">__main__</span>:</span><span style="color: black;">send()</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">(重要说明:<span style="color: black;">倘若</span>Python脚本返回的数据中含有中文,需要<span style="color: black;">运用</span> iconv(gbk, utf-8, $re); 进行转义)</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/mpTpNCHRicia8b3RlnPxEWEFGsXVZl4a05ME8OvuAtvCk16RLwqgWVFsKR4D4zEAFGHQVAPE1RVz0NUic2PU7o9iag/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>2、传参,接收返回数据<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">inde.php</p><span style="color: black;"><span style="color: black;">$canshu1</span> = <span style="color: black;">这是PHP传过来的参数</span>;</span><span style="color: black;"><span style="color: black;">$canshu2</span> = date(<span style="color: black;">Y-m-d</span>);</span><span style="color: black;"><span style="color: black;">$re</span> = <span style="color: black;">exec</span>(<span style="color: black;">"python ceshi.py <span style="color: black;">$canshu1</span> <span style="color: black;">$canshu2</span>"</span>);</span><span style="color: black;"><span style="color: black;">$re</span> = iconv(<span style="color: black;">gbk</span>, <span style="color: black;">utf-8</span>, <span style="color: black;">$re</span>);</span><span style="color: black;">var_dump(<span style="color: black;">$re</span>);</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">test.py</span></p><span style="color: black;"><span style="color: black;">import</span> sys</span><span style="color: black;"><span style="color: black;"><span style="color: black;">def</span> <span style="color: black;">send</span><span style="color: black;">()</span>:</span></span><span style="color: black;"> <span style="color: black;"># a1 = sys.argv</span></span><span style="color: black;"> <span style="color: black;"># a2 = sys.argv</span></span><span style="color: black;"> re = sys.argv[<span style="color: black;">1</span>:]</span><span style="color: black;"> data = <span style="color: black;">1,2,3,4,5,</span> + <span style="color: black;">,</span>.join(re) <span style="color: black;"># 转字符串</span></span><span style="color: black;"> print(data)</span><span style="color: black;"><span style="color: black;">if</span> __name__ == <span style="color: black;">__main__</span>:</span><span style="color: black;"> send()</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">导入sys包,<span style="color: black;">运用</span>sys.argv[]数组获取传入参数,<span style="color: black;">第1</span>个传入参数为sys.argv,第二个为sys.argv以此类推,不要<span style="color: black;">运用</span>argv</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/mpTpNCHRicia8b3RlnPxEWEFGsXVZl4a05g9uzTicsFop4XURjADhJbggboOHrpC7jfdf8rRw28oZ4fibvzWdMBU1A/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">接收返回 json 数据:</p><span style="color: black;"><span style="color: black;">import</span> sys</span><span style="color: black;"><span style="color: black;">import</span> json</span><span style="color: black;"><span style="color: black;"><span style="color: black;">def</span> <span style="color: black;">send</span><span style="color: black;">()</span>:</span></span><span style="color: black;"> dict = {<span style="color: black;">id</span>:<span style="color: black;">111</span>, <span style="color: black;">title</span>:<span style="color: black;">测试title</span>}</span><span style="color: black;"> dict[<span style="color: black;">data</span>] = sys.argv[<span style="color: black;">1</span>:]</span><span style="color: black;"> jsonArr = json.dumps(dict, ensure_ascii=<span style="color: black;">False</span>)</span><span style="color: black;"> print(jsonArr)</span><span style="color: black;"><span style="color: black;">if</span>__name__ ==<span style="color: black;">__main__</span>:</span><span style="color: black;"> send()</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">(<span style="color: black;">触及</span>到中文字符的时候,需要指定ensure_ascii=False)</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/mpTpNCHRicia8b3RlnPxEWEFGsXVZl4a05vk4EMt9s0Bbo9fvbggjKkERZ8ffzaldwQ7cqKDmUKuWjRBCW5icX1sQ/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">2、</span>system() — 执行<span style="color: black;">外边</span>程序,并且<span style="color: black;">表示</span>输出</h3><span style="color: black;"><span style="color: black;">system</span> ( string $command [, <span style="color: black;">int</span> &$return_var ] ) : string</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">同 C 版本的 system() 函数<span style="color: black;">同样</span>,本函数执行 command 参数所指定的命令,并且输出执行结果。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">倘若</span> PHP 运行在服务器模块中, system() 函数还会尝试在每行输出完毕之后,自动刷新 web 服务器的输出缓存。</p><span style="color: black;">倘若</span>要获取一个命令未经任何处理的 原始输出,请<span style="color: black;">运用</span> passthru() 函数。
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">index.php</p><span style="color: black;"><?php</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;">这是运行直接输出:</span>;</span><span style="color: black;"><span style="color: black;">$re</span> = system(<span style="color: black;">python ceshi.py</span>);</span><span style="color: black;">// <span style="color: black;">$re</span> = iconv(<span style="color: black;">gbk</span>, <span style="color: black;">utf-8</span>, <span style="color: black;">$re</span>);</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;"><br/></span>;</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;">这是赋值输出:</span>;</span><span style="color: black;">var_dump(<span style="color: black;">$re</span>);</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这儿</span><span style="color: black;">运用</span>最初版本的 test.py,输出效果如下:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/mpTpNCHRicia8b3RlnPxEWEFGsXVZl4a05OAxSukmO2cSL4mFknbqUicKRn5AibRJLbiateniaKh3I2HPHQxDUJrokUw/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">3、</span>passthru() — 执行<span style="color: black;">外边</span>程序,并且<span style="color: black;">表示</span>输出</h3><span style="color: black;">passthru ( <span style="color: black;">string</span> $command [, <span style="color: black;">int</span> &$return_var ] ) : <span style="color: black;">void</span></span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">同 exec() 函数类似, passthru() 函数 <span style="color: black;">亦</span>是用来执行<span style="color: black;">外边</span>命令(command)的。当所执行的 Unix 命令输出二进制数据,并且需要直接传送到浏览器的时候,需要用此函数来替代 exec() 或 system() 函数。常用来执行诸如 pbmplus 之类的<span style="color: black;">能够</span>直接输出图像流的命令。<span style="color: black;">经过</span>设置 Content-type 为 image/gif,<span style="color: black;">而后</span>调用 pbmplus 程序输出 gif 文件,就<span style="color: black;">能够</span>从 PHP 脚本中直接输出图像到浏览器。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">index.php</p><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;">这是运行直接输出:</span>;</span><span style="color: black;"><span style="color: black;">$re</span> = passthru(<span style="color: black;">python ceshi.py</span>);</span><span style="color: black;">// <span style="color: black;">$re</span> = iconv(<span style="color: black;">gbk</span>, <span style="color: black;">utf-8</span>, <span style="color: black;">$re</span>);</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;"><br/></span>;</span><span style="color: black;"><span style="color: black;">echo</span> <span style="color: black;">这是赋值输出:</span>;</span><span style="color: black;">var_dump(<span style="color: black;">$re</span>);</span>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这儿</span><span style="color: black;">运用</span>最初版本的 test.py,输出效果如下:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/mpTpNCHRicia8b3RlnPxEWEFGsXVZl4a05yiaRhmTwhcib9aWW1yohcTQerxaMuR4Qg4vnJPdBnd36rDr6Z6mdjHYQ/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">本文为冯奎原创<span style="color: black;">文案</span>,转载无需和我联系,但请注明来自冯奎博客fengkui.net</p>
祝福你、祝你幸福、早日实现等。 你的话语真是温暖如春,让我心生感激。 我完全同意你的看法,期待我们能深入探讨这个问题。
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