$base64 = "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"; $img = base64_decode($base64); //$a = file_put_contents('./test.jpg', $img);//保存图片，返回的是字节数 //print_r($a); header( "content-type: image/jpeg");//直接输出显示jpg格式图片 echo $img;
运行效果图如下：
希望本文所述对大家php程序设计有所帮助。
更多php解析base64数据生成图片的方法。