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Python, compute list difference
...too long to wait for
timeit[diff_lamb_filter(a, b)]
# TypeError: sequence index must be integer, not 'slice'
@roman-bodnarchuk list comprehensions function def diff(a, b) seems to be faster.
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Any equivalent to .= for adding to beginning of string in PHP?
...quired parameter of the function, it needs to be passed to the function or PHP will complain. This means this check can be abbreviated to if ($chunk) (to see if it's falsy a.k.a. "empty"). But, if $chunk doesn't contain anything, nothing will happen anyway. So this whole function body can be abbrevi...
Laravel blank white screen
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Try this, in the public/index.php page
error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
ini_set("display_errors", 1);
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How do you remove an array element in a foreach loop?
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Note that indexed arrays with items unset may be represented as objects instead of arrays after a json_encode(). You can solve this with $display_related_tags = array_values ($display_related_tags); after the foreach loop.
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How to encrypt/decrypt data in php?
I'm currently a student and I'm studying PHP, I'm trying to make a simple encrypt/decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me).
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URL encoding the space character: + or %20?
...s is not very consistent across languages, though.
If I'm not mistaken, in PHP urlencode() treats spaces as + whereas Python's urlencode() treats them as %20.
EDIT:
It seems I'm mistaken. Python's urlencode() (at least in 2.7.2) uses quote_plus() instead of quote() and thus encodes spaces as "+".
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What is the use of the @ symbol in PHP?
... zero"
$c = @$_POST["a"] + @$_POST["b"];
// suppressed "Notice: Undefined index: a"
// suppressed "Notice: Undefined index: b"
$c = @foobar();
echo "Script was not terminated";
// suppressed "Fatal error: Call to undefined function foobar()"
// however, PHP did not "ignore" the error and terminate...
Why shouldn't I use mysql_* functions in PHP?
...statement
Now I come to fetch mode:
PDO::FETCH_ASSOC: returns an array indexed by column name as returned in your result set
PDO::FETCH_BOTH (default): returns an array indexed by both column name and 0-indexed column number as returned in your result set
There are even more choices! Read abou...
Programmer-friendly search engine? [closed]
... We could perhaps write such a search engine. Then we'd have to index the Internet, which is a bigger problem. I don't think many of us are going to be able to afford Google-size data centers with Google-level bandwidth, and that's what we'd need to get started.
– D...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...设置LVS_SHOWSELALWAYS
5. 选中和取消选中一行
int nIndex = 0;
//选中
m_list.SetItemState(nIndex, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED);
//取消选中
m_list.SetItemState(nIndex, 0, LVIS_SELECTED|LVIS_FOCUSED);
6. 得到listctrl中所...