图片上传base64

/**
	 *  图片上传base64
	 * @param string $base64Content  上传图片内容
	 * @param string $file  upload   $file='app'  保存的目录
	 * @return string
	 * @return:
	 */
public function saveBase64Img($base64Content,$file='app')
	{
	
		$ret = '';
		if(!empty($base64Content))
		{
            //获取保存的绝对路径
			$path = $_SERVER['DOCUMENT_ROOT']."/public/uploads/{$file}/";
			$dateArray = getdate(time());
			$folder_name = $dateArray['year'].$dateArray['mon'].$dateArray['mday'];
			$path .= "/".$folder_name;
			if(!is_dir($path))
			{
				mkdir($path, 0777,true);   //每天创建一个文件夹
			}
			if ($base64Content)
			{
				$type = "jpg";
				$file_name = time()."_".mt_rand( 100000, 999999).".".$type;
				$new_file = $path."/".$file_name;
				
				if (file_put_contents($new_file, base64_decode($base64Content)))
				{
					$ret = "/images/{$file}/".$folder_name."/".$file_name;
					return $ret;
				}
			}
		}
		return $ret;
	}

外面直接调用即可

saveBase64Img($content,'pic');

/images/pic/20191113/1573624433_479294.jpg    //返回图片路径，存入数据库即可