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How to set default value for form field in Symfony2?
...
->add('myfield', 'text', array(
'label' => 'Field',
'empty_data' => 'Default value'
))
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horizontal line and right way to code it in html, css
...r> tag represents a horizontal rule.
http://www.w3schools.com/tags/tag_hr.asp
So after definition, I would prefer <hr>
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Why should hash functions use a prime number modulus?
...e comes out to be a factor of the bucket count then you can only do (bucket_count / stride) probes before you're back where you started. The case you most want to avoid is stride = 0, of course, which must be special-cased, but to avoid also special-casing bucket_count / stride equal to a small inte...
How do you use bcrypt for hashing passwords in PHP?
...s have now been built directly into PHP >= 5.5. You may now use password_hash() to create a bcrypt hash of any password:
<?php
// Usage 1:
echo password_hash('rasmuslerdorf', PASSWORD_DEFAULT)."\n";
// $2y$10$xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
// For example:
// $2y$10$.vGA...
Installing R with Homebrew
...--with-java" and "--with-openblas" options?
– chang02_23
Oct 24 '18 at 17:26
@chang02_23 No, by default it is not. The...
Detecting when the 'back' button is pressed on a navbar
...(the NavigationController) with the help of willMoveToParentViewController(_:) OR didMoveToParentViewController()
If parent is nil, the view controller is being popped off the navigation stack and dismissed. If parent is not nil, it is being added to the stack and presented.
// Objective-C
-(void...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
...en testing this, you need a minimum of 4-digit SHA1, because of int minimum_abbrev = 4 in environment.c. (Thanks @devnull for pointing that out!)
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Invalid postback or callback argument. Event validation is enabled using '
... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg)
– gdbdable
May 22 '14 at 7:11
...
Difference between a “coroutine” and a “thread”?
...ot involved in the coroutine switches.
—http://www.boost.org/doc/libs/1_55_0/libs/coroutine/doc/html/coroutine/overview.html
A language that supports native threads can execute its threads (user threads) onto the operating system's threads (kernel threads). Every process has at least one kerne...
FAT32系统中长文件名的存储 - C/C++ - 清泛网 - 专注C/C++及内核技术
...)。
(4)、如果存在老OS或程序无法读取的字符，换以"_"
短文件格式的目录项。其参数意义见表14：
表14 FAT32短文件目录项32个字节的表示定义
字节偏移(16进制)
字节数
定义
0x0~0x7
8
文件名
0x8~0xA...