在很多任务中我们可能需要发送post请求,但是又不需要或者不想用界面表单的方式,这时就可以使用php中的curl 来模拟表单的提交
首先封装一个curl 方法
private function curlExec($options) { $ch = curl_init (); curl_setopt_array ( $ch, $options ); // 返回json string $result = curl_exec ( $ch ); // 检查是否有错误发生 if (curl_errno ( $ch )) { $error = "curl exec error! " . curl_error ( $ch ); $result = array ( "code" => "1005", "info" => $error ); } curl_close ( $ch ); return $result; }
然后就就是对参数设置的问题, 官方文档刚开始有点不理解,现在详细说明一下:
就curl_setopt()来说,传递一个数组到CURLOPT_POST将会把数据以multipart/form-data的方式编码,然而传递一个URL-encoded字符串将会以application/x-www-form-urlencoded的方式对数据进行编码。
首先是传递进去$post为array, 而且配置中没有使用CURLOPT_POST
CURLOPT_POST=1
这个参数是将 multipart/form-data 类型转换为 application/x-www-form-urlencoded 格式,
如下面的例子传递post请求是以 multipart/form-data 格式:
$post = array ('imagefile' => '@' . $uploadFilePath, 'configfile' => $data ); $url = $this->cfg['baseUrl'].'/upload'; $options = array ( CURLOPT_URL => $url, CURLOPT_POSTFIELDS => $post, CURLOPT_HEADER => 0, CURLOPT_RETURNTRANSFER => 1, CURLOPT_TIMEOUT => 28, CURLOPT_CONNECTTIMEOUT => $this::MAX_CONNECTION_TIME);
下面说URL-encoded 方式,其实就是将参数已字符串拼接的方式进行传递.
如果传递post请求是以 application/x-www-form-urlencoded , 就需要先将参数 用字符串拼接,不能使用数组.
不放心的情况下可是设置 CURLOPT_POST=1 这个要设置在 CURLOPT_POSTFIELDS= $post 下面,
保证 CONTENT_TYPE 始终为 application/x-www-form-urlencoded .
例子如下:
$post = 'ids=123&name=aa';$url = 'http://localhost/Test/test.php'; $options = array ( CURLOPT_URL => $url, CURLOPT_HEADER => 0, CURLOPT_RETURNTRANSFER => 1, CURLOPT_POSTFIELDS => $post, CURLOPT_POST=> 1, CURLOPT_TIMEOUT => 28, CURLOPT_CONNECTTIMEOUT => $this::MAX_CONNECTION_TIME, );
还有一种解决方式就是自己写head头部信息,
如
$options = array ( ... CURLOPT_HTTPHEADER= array('Content-Type: application/x-www-form-urlencoded'),);
如果需要其他Head可以自己添加.

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PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

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PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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