PHP7基于curl实现的上传图片功能-php教程-PHP中文网

PHP7基于curl实现的上传图片功能

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发布： 2023-03-29 06:54:02

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这篇文章主要介绍了PHP7基于curl实现的上传图片功能,结合实例形式对比分析了php5.5之前与php7版本的curl图片上传功能相关实现与使用技巧,需要的朋友可以参考下

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

$curl = curl_init();
if (defined(&#39;CURLOPT_SAFE_UPLOAD&#39;)) {
  curl_setopt($curl, CURLOPT_SAFE_UPLOAD, false);
}
$data = array(&#39;file&#39; => &#39;@&#39; . realpath($path));//‘@&#39; 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);

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php5.5之后，到php7

$curl = curl_init();
curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
$data = array(&#39;file&#39; => new \CURLFile(realpath($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);

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下面提供一个兼容的方法：

$curl = curl_init();
if (class_exists(&#39;\CURLFile&#39;)) {
 curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
$data = array(&#39;file&#39; => new \CURLFile(realpath($path)));//>=5.5
} else {
 if (defined(&#39;CURLOPT_SAFE_UPLOAD&#39;)) {
  curl_setopt($curl, CURLOPT_SAFE_UPLOAD, false);
 }
 $data = array(&#39;file&#39; => &#39;@&#39; . realpath($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);

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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"

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upload.php示例：

<?php
  file_put_contents(time().".json", json_encode($_FILES));
  $tmp_name = $_FILES[&#39;file&#39;][&#39;tmp_name&#39;];
  $name = $_FILES[&#39;file&#39;][&#39;name&#39;];
  move_uploaded_file($tmp_name,&#39;audit/&#39;.$name);
?>

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