我生成画布并将其传递给 php,因此:
$('body').on('click','#save_image',function(){
html2canvas($('.myImage'), {
onrendered: function(canvas) {
//$('.imageHolder').html(canvas);
var dataURL = canvas.toDataURL("image/png");
// $('.imageHolder').append('<img src="'+dataURL+'" />');
$('.imageHolder').html('Generating..');
$.post('image.php',{image: dataURL},function(data){
$('.imageHolder').html(data);
});
}
});
});
图像.php:
<?
$image = $_POST['image'];
echo "<img src='$image' alt='image' />";
$decoded = str_replace('data:image/png;base64,','',$image);
$name = time();
file_put_contents("/home/toni005/public_html/toniweb.us/div2img/" . $name . ".png", $decoded);
echo '<p><a href="download.php?img='.$name.'.png">Download</a></p>';
?>
下载.php:
<? $file = $_GET['img'];
header('Content-Description: File Transfer');
header("Content-type: image/jpg");
header("Content-disposition: attachment; filename= ".$file."");
readfile($file);
?>
问题是图像已生成,当我单击下载链接时,下载被强制但无法打开图像(似乎已损坏)
我错过了什么?
可以在这里测试:http: //toniweb.us/div2img/