本文实例讲述了PHP7基于curl实现的上传图片功能-formdata格式上传图片

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

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$curl = curl_init(); if (defined('CURLOPT_SAFE_UPLOAD')) {   curl_setopt($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

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$curl = curl_init(); curl_setopt($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：

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$curl = curl_init(); if (class_exists('CURLFile')) {  curl_setopt($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

1 2	$url="http://localhost/upload.php"; $path = "/bg_right.jpg"

upload.php示例：

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<?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); ?>

PHP7.0演示示例

/**xm编写php7.0模拟fomadata文件上传
 * @param $url
 * @param $arr
 */
function curl_post_file($url,$arr){
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
    //$data = array('media' => new CURLFile(realpath($p)));
    $data=$arr;
    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);
    return $result;
}

　　调用演示-微信敏感人物检测

 $url = "https://api.weixin.qq.com/wxa/img_sec_check?access_token=".$token;
 $p=str_replace("\","/",ROOT_PATH."public".$pic);//图片路径
 $data = array('media' => new CURLFile(realpath($p)));
 $mgan_json=curl_post_file($url,$data);