自定义应用里用header("Content-type: image/jpeg"); 输出图片，header不起作用，输出为乱码
迅睿框架 更新 2020-09-25 15:12:13
Alvin
Alvin
自定义应用里用header("Content-type: image/jpeg"); 输出图片，header不起作用，输出为乱码。
浏览器里还是content-type:text/html; charset=UTF-8，请教一下这个怎么样才能输出显示图片？
<?php namespace Phpcmf\Controllers; class Show extends \Phpcmf\Common { public function img() { $url = \Phpcmf\Service::L('input')->get('url'); $img_info = getimagesize($url); $img = $this->https_request($url); header('Content-type: image/jpeg'); return $img; } //HTTP请求（支持HTTP/HTTPS，支持GET/POST） protected function https_request($url, $data = null) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)){ curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE); $output = curl_exec($curl); curl_close($curl); return $output; } }<?php namespace Phpcmf\Controllers; class Show extends \Phpcmf\Common { public function img() { $url = \Phpcmf\Service::L('input')->get('url'); $info = getimagesize($url); $img = $this->https_request($url); header('Content-type: image/jpeg'); $imgExt = image_type_to_extension($info[2], false); //获取文件后缀 $fun = "imagecreatefrom{$imgExt}"; $imgInfo = $fun($img); //1.由文件或 URL 创建一个新图象。如:imagecreatefrompng ( string $filename ) //$mime = $info['mime']; $mime = image_type_to_mime_type(exif_imagetype($img)); //获取图片的 MIME 类型 header('Content-Type:'.$mime); $quality = 100; if($imgExt == 'png') $quality = 9; //输出质量,JPEG格式(0-100),PNG格式(0-9) $getImgInfo = "image{$imgExt}"; $getImgInfo($imgInfo, null, $quality); //2.将图像输出到浏览器或文件。如: imagepng ( resource $image ) imagedestroy($imgInfo); } //HTTP请求（支持HTTP/HTTPS，支持GET/POST） protected function https_request($url, $data = null) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)){ curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE); $output = curl_exec($curl); curl_close($curl); return $output; } }改进一下，试一试这个