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SHA1 vs md5 vs SHA256: which to use for a PHP login?
I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?
...
How do I *really* justify a horizontal menu in HTML+CSS?
...e-between - (example here):
ul {
list-style: none;
padding: 0;
margin: 0;
}
.menu {
display: flex;
justify-content: space-between;
}
<ul class="menu">
<li>Item One</li>
<li>Item Two</li>
<li>Item Three Longer</li...
How does java do modulus calculations with negative numbers?
...
104
Both definitions of modulus of negative numbers are in use - some languages use one definition ...
How to add line break for UILabel?
...
Use \n as you are using in your string.
Set numberOfLines to 0 to allow for any number of lines.
label.numberOfLines = 0;
Update the label frame to match the size of the text using sizeWithFont:. If you don't do this your text will be vertically centered or cut off.
UILabel *label;...
jQuery AJAX file upload PHP
...('click', function() {
var file_data = $('#sortpicture').prop('files')[0];
var form_data = new FormData();
form_data.append('file', file_data);
alert(form_data);
$.ajax({
url: 'upload.php', // point to server-side PHP scri...
What does the plus sign do in '+new Date'
...
edited Aug 17 '15 at 12:20
dovid
5,70733 gold badges2828 silver badges6161 bronze badges
answered Oct 2...
All but last element of Ruby array
...
130
Perhaps...
a = t # => [1, 2, 3, 4]
a.first a.size - 1 # => [1, 2, 3]
or
...
java.net.UnknownHostException: Invalid hostname for server: local
... local computer. Try with the hostname "localhost" instead, or perhaps 127.0.0.1 or ::1 (the last one is IPv6).
From the javadocs:
Thrown to indicate that the IP address
of a host could not be determined.
127.0.0.1or ::1 or "localhost" should always be the loopback interface, so if that doe...
What does “javascript:void(0)” mean?
...
1081
The void operator evaluates the given
expression and then returns undefined.
The voi...
NumberPicker 扩展：滑动选择数字，自定义样式 · App Inventor 2 中文网
...：
NumberPicker.aia
基本信息
版本：v1.0
发布时间：2025-07-02
JDK：11
最低 API 级别：21
更新时间：2025-07-02
构建方式：FAST v3.7.2-premium
方法
ShowNumberPickerDialog显示数字选择器对话框(组...