是否可以从POST收到的dataURL创建和显示图片文件？
就像是：
就像是：
<? $imgstr = $_POST["imgdata"]; //data:image/png;base64,.... etc (it's always PNG) echo base64_decode($imgstr); // idk what this really does ?>
我不能使用< img>标签来显示它.它需要像“普通”图像文件一样.
如果是你的意见是
// Red dot graphic,stolen from Wikipedia $imgstr = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==';
然后你就可以做你想做的事
// Grab the MIME type and the data with a regex for convenience
if (!preg_match('/data:([^;]*);base64,(.*)/',$imgstr,$matches)) {
die("error");
}
// Decode the data
$content = base64_decode($matches[2]);
// Output the correct HTTP headers (may add more if you require them)
header('Content-Type: '.$matches[1]);
header('Content-Length: '.strlen($content));
// Output the actual image data
echo $content;
die;