在PHP中使用cURL发布文件string？

我想知道是否有可能发布一个文件 – 连同其他表单数据 – 当文件只是一个string？

我知道你可以通过在文件path前加“@”来发布已经在文件系统上的文件。

不过，我想绕过创build一个临时文件，只发送文件作为string，但我不确定如何使用PHP中的cURL构造请求。

干杯

$postFields = array( 'otherFields' => 'Yes' ,'filename' => 'my_file.csv' ,'data' => 'comma seperated content' ); $options = array( CURLOPT_RETURNTRANSFER => true ,CURLOPT_SSL_VERIFYPEER => false ,CURLOPT_SSL_VERIFYHOST => 1 ,CURLOPT_POSTFIELDS => $postFields ,CURLOPT_HTTPHEADER => array( 'Content-type: multipart/form-data' ) ); 

Answer 1

应该是可能的：这里是一个表格，通过浏览器张贴（不相关的字段省略）：

 POST http://host.example.com/somewhere HTTP/1.1 Content-Type: multipart/form-data; boundary=---------------------------7da16b2e4026c Content-Length: 105732 -----------------------------7da16b2e4026c Content-Disposition: form-data; name="NewFile"; filename="test.jpg" Content-Type: image/jpeg (...raw JPEG data here...) -----------------------------7da16b2e4026c Content-Disposition: form-data; name="otherformfield" content of otherformfield is this text -----------------------------7da16b2e4026c-- 

所以，如果我们自己构buildPOST主体并设置一个或多个额外的头文件，我们应该能够模拟这个：

 // form field separator $delimiter = '-------------' . uniqid(); // file upload fields: name => array(type=>'mime/type',content=>'raw data') $fileFields = array( 'file1' => array( 'type' => 'text/plain', 'content' => '...your raw file content goes here...' ), /* ... */ ); // all other fields (not file upload): name => value $postFields = array( 'otherformfield' => 'content of otherformfield is this text', /* ... */ ); $data = ''; // populate normal fields first (simpler) foreach ($postFields as $name => $content) { $data .= "--" . $delimiter . "\r\n"; $data .= 'Content-Disposition: form-data; name="' . $name . '"'; // note: double endline $data .= "\r\n\r\n"; } // populate file fields foreach ($fileFields as $name => $file) { $data .= "--" . $delimiter . "\r\n"; // "filename" attribute is not essential; server-side scripts may use it $data .= 'Content-Disposition: form-data; name="' . $name . '";' . ' filename="' . $name . '"' . "\r\n"; // this is, again, informative only; good practice to include though $data .= 'Content-Type: ' . $file['type'] . "\r\n"; // this endline must be here to indicate end of headers $data .= "\r\n"; // the file itself (note: there's no encoding of any kind) $data .= $file['content'] . "\r\n"; } // last delimiter $data .= "--" . $delimiter . "--\r\n"; $handle = curl_init($url); curl_setopt($handle, CURLOPT_POST, true); curl_setopt($handle, CURLOPT_HTTPHEADER , array( 'Content-Type: multipart/form-data; boundary=' . $delimiter, 'Content-Length: ' . strlen($data))); curl_setopt($handle, CURLOPT_POSTFIELDS, $data); curl_exec($handle); 

这样一来，我们正在竭尽全力，并且相信cURL不会把它弄碎。

Answer 2

PHP可以访问一个临时的位置“php：// memory”，这实际上使得你想要做的事情相当容易。

 $fh = fopen('php://memory','rw'); fwrite( $fh, $content); rewind($fh); $options = array( CURLOPT_RETURNTRANSFER => true ,CURLOPT_SSL_VERIFYPEER => false ,CURLOPT_SSL_VERIFYHOST => 1 ,CURLOPT_HTTPHEADER => array( 'Content-type: multipart/form-data' ) ,CURLOPT_INFILE => $fh ,CURLOPT_INFILESIZE => strlen($content) );