Why does php file deletion fail?

The reason why php failed to delete the file: The file was still occupied by other threads or processes when it was deleted. Solution: First release the file object manually to avoid deletion failure due to being occupied by other threads or processes; then use the unlink() function to delete the file.

#Cause analysis:

The file is still occupied by other processes. So we'd better release the file object to avoid deletion failure due to being occupied by other threads or processes.

(Recommended tutorial: php graphic tutorial)

unlink() function deletes files.

If successful, this function returns TRUE. On failure, returns FALSE.

(Video tutorial recommendation: php video tutorial)

Code implementation:

public function upload()
{
    //获取上传文件
    $file = $this->request->file('file');
	
    if ($file) {
        // 移动文件到 uploads 目录下
        $info = $file->rule('date')->move(ROOT_PATH . 'public' . DS . 'uploads');
		
        if ($info) {//文件上传到服务器成功->接下来上传到OSS
            $filePath = ROOT_PATH . 'public' . DS . 'uploads/' . $info->getSaveName();
        	
            $oss = new Oss();
            $result = $oss->putObject($filePath); 
                  
            if ($result) { //上传到OSS成功                              
                unset($info);//解除图片的进程占用
                @unlink($filePath);
                return success(['avatar' => $result['fileSrc']], '头像更新成功');
            }
        }
    }
}

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