PHP7基于curl实现的上传图片功能

本文实例讲述了PHP7基于curl实现的上传图片功能。分享给大家供大家参考，具体如下：

根据php版本不同，curl模拟表单上传的方法不同

php5.5之前

$curl = curl_init();if (defined("CURLOPT_SAFE_UPLOAD")) {  curl_setopt($curl, CURLOPT_SAFE_UPLOAD, false);}$data = array("file" => "@" . realpath($path));//‘@" 符号告诉服务器为上传资源curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_POST, 1 );curl_setopt($curl, CURLOPT_POSTFIELDS, $data);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);curl_setopt($curl, CURLOPT_USERAGENT,"TEST");$result = curl_exec($curl);$error = curl_error($curl);

php5.5之后，到php7

$curl = curl_init();curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);$data = array("file" => new CURLFile(realpath($path)));url_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_POST, 1 );curl_setopt($curl, CURLOPT_POSTFIELDS, $data);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);curl_setopt($curl, CURLOPT_USERAGENT,"TEST");$result = curl_exec($curl);$error = curl_error($curl);

下面提供一个兼容的方法：

$curl = curl_init();if (class_exists("CURLFile")) { curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);$data = array("file" => new CURLFile(realpath($path)));//>=5.5} else { if (defined("CURLOPT_SAFE_UPLOAD")) {  curl_setopt($curl, CURLOPT_SAFE_UPLOAD, false); } $data = array("file" => "@" . realpath($path));//<=5.5}curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_POST, 1 );curl_setopt($curl, CURLOPT_POSTFIELDS, $data);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);curl_setopt($curl, CURLOPT_USERAGENT,"TEST");$result = curl_exec($curl);$error = curl_error($curl);

其中：

$path：为待上传的图片地址

$url：目标服务器地址

例如

$url="http://localhost/upload.php";$path = "/bg_right.jpg"

upload.php示例：

<?php  file_put_contents(time().".json", json_encode($_FILES));  $tmp_name = $_FILES["file"]["tmp_name"];  $name = $_FILES["file"]["name"];  move_uploaded_file($tmp_name,"audit/".$name);?>

更多关于PHP相关内容感兴趣的读者可查看本站专题：《php curl用法总结》、《PHP网络编程技巧总结》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《PHP数据结构与算法教程》、《php程序设计算法总结》、《PHP运算与运算符用法总结》及《php常见数据库操作技巧汇总》

希望本文所述对大家PHP程序设计有所帮助。