php使用curl的post方法字串和陣列傳值的區別

最近在工作中需要請求第三方的一個java版的接口，起初是使用數組進行傳參，代碼寫完之後發現接口死活調試不通，總是提示傳參為空，糾結了很久之後，決定嘗試使用字串傳參的方式來請求接口，沒想到這次居然調試成功了，這讓我有了研究這兩者究竟有何區別的興趣。

本地的測試程式碼如下：
curl.php

<code><span><span><?php </span><span><span>function</span><span>curl_post</span><span>(<span>$url</span>, <span>$data</span>)</span>{</span><span>$ch</span> = curl_init();
     curl_setopt(<span>$ch</span>, CURLOPT_URL, <span>$url</span>);
     curl_setopt(<span>$ch</span>, CURLOPT_RETURNTRANSFER, <span>1</span>);
     curl_setopt(<span>$ch</span>, CURLOPT_POST, <span>1</span>);
     curl_setopt(<span>$ch</span>, CURLOPT_POSTFIELDS, <span>$data</span>);
     <span>$output</span> = curl_exec(<span>$ch</span>);
     curl_close(<span>$ch</span>);
     <span>return</span><span>$output</span>;
}

<span>$params</span> = <span>array</span>();
<span>$params</span>[<span>'username'</span>] = <span>'ben'</span>;
<span>$params</span>[<span>'password'</span>] = <span>'lalala'</span>;
print_r(curl_post(<span>'http://localhost/curl/post.php'</span>, <span>$params</span>));

<span>$params</span> = <span>array</span>();
<span>$params</span>[<span>'username'</span>] = urlencode(<span>'ben'</span>);
<span>$params</span>[<span>'password'</span>] = urlencode(<span>'lalala'</span>);
<span>$paramsStr</span> = <span>"username={$params['username']}&password={$params['password']}"</span>;
print_r(curl_post(<span>'http://localhost/curl/post.php'</span>, <span>$paramsStr</span>));

<span>?></span></span></span></code>

post.php

<code><span><?php </span><span>echo</span><span>"-------php://input-----<br>"</span>;
var_dump(@file_get_contents(<span>'php://input'</span>));
<span>echo</span><span>"-------post-----<br>"</span>;
var_dump(<span>$_POST</span>);
<span>echo</span><span>"-------server-----<br>"</span>;
var_dump(<span>$_SERVER</span>);</span></code>

執行結果可以參考如下截圖：

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以上就介紹了php使用curl的post方法字串和陣列傳值的區別，包括了方面的內容，希望對PHP教程有興趣的朋友有所幫助。