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How can I get the MAC and the IP address of a connected client in PHP?
... get the Mac Address?
– jcho360
Jun 21 '12 at 12:58
@jcho360 It's still not possible to get the MAC address of a clien...
Calculating arithmetic mean (one type of average) in Python
...
21
A common thing is to consider that the average of [] is 0, which can be done by float(sum(l))/max(len(l),1).
– yo'
...
Meaning of @classmethod and @staticmethod for beginner? [duplicate]
...thod can have no parameters at all.
Example
class Date(object):
def __init__(self, day=0, month=0, year=0):
self.day = day
self.month = month
self.year = year
@classmethod
def from_string(cls, date_as_string):
day, month, year = map(int, date_as_string...
How to use php serialize() and unserialize()
... |
edited Oct 9 '17 at 12:21
Machavity♦
27.5k1616 gold badges7171 silver badges8787 bronze badges
answ...
Regex lookahead, lookbehind and atomic groups
...pression.info for more details.
Positive lookahead:
Syntax:
(?=REGEX_1)REGEX_2
Match only if REGEX_1 matches; after matching REGEX_1, the match is discarded and searching for REGEX_2 starts at the same position.
example:
(?=[a-z0-9]{4}$)[a-z]{1,2}[0-9]{2,3}
REGEX_1 is [a-z0-9]{4}$ which...
phpcms v9类别调用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...前面加一句把类别缓存加载进来：
<?php $TYPE = getcache('type_content','commons');?>
然后在循环里写：
<a href="index.php?m=content&c=type&catid={$catid}&typeid={$r[typeid]}">{$TYPE[$r[typeid]][name]}</a>
这样就可以调用出来类别了，不过链接暂时无效，因...
File Upload without Form
...d MonshizadehOmid Monshizadeh
1,31499 silver badges1212 bronze badges
...
Callback functions in C++
...ard algorithms library <algorithm> use callbacks. For example the for_each algorithm applies an unary callback to every item in a range of iterators:
template<class InputIt, class UnaryFunction>
UnaryFunction for_each(InputIt first, InputIt last, UnaryFunction f)
{
for (; first != las...
How can I visualize per-character differences in a unified diff file?
...
legoscialegoscia
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...
How to check if a file exists in Go?
...7609732/…
– Marcello de Sales
Feb 21 '18 at 0:41
You could use os.IsExist() depending the case, could be more idioma...