PHP7基于curl实现的上传图片功能

发布:smiling　来源: PHP粉丝网　添加日期：2018-10-11 14:16:14　浏览: 评论：0　

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

} //phpfensi.com

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);

?>