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利用javascript 提升图像尺寸
原标题:Get uploaded image dimensions using javascript

我的表格之一(jquery + html + php) 我必须检查档案的延伸,然后向服务器上载。 页: 1 用户只能上载<代码>jpg。 仅存档,在固定范围内,例如:150px X 100px。 为此,我必须用javascript书写客户方的验证。

最佳回答

You字中你可以这样做。 http://www.swfupload.org/“rel=“nofollow”

<>Update:

我确实喜欢一个高压项目。

http://blueimp.github.com/jQuery-File-Upload/

问题回答

Java无法检查档案的真实类型。 这意味着用户可以通过将BMP文档重新命名为“jpg”延伸而上载。

然而,可以做这项工作的 j印法样本是:

// Assume that filename is a variable that holds the filename 
if(filename.lastIndexOf(".jpg") == -1) {
    return false;
}
else {
    return true;
}




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