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Disabling Strict Standards in PHP 5.4
...
.htaccess php_value is working only if you use PHP Server API as module of Web server Apache.
Use IfModule syntax:
# PHP 5, Apache 1 and 2.
<IfModule mod_php5.c>
php_value error_reporting 30711
</IfModule>
If you use PHP Server API CGI/FastCGI use
ini_set('error_reporti...
GroupBy pandas DataFrame and select most common value
...ount
source['account'] = [1,2,3,3]
source.groupby(['Country','City']).agg(mod = ('Short name', \
lambda x: x.value_counts().index[0]),
avg = ('account', 'mean') \
)
...
How to get file creation & modification date/times in Python?
I have a script that needs to do some stuff based on file creation & modification dates but has to run on Linux & Windows .
...
Simplest way to detect a mobile device in PHP
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Another update/mod: /\b(?:a(?:ndroid|vantgo)|b(?:lackberry|olt|o?ost)|cricket|docomo|hiptop|i(?:emobile|p[ao]d)|kitkat|m(?:ini|obi)|palm|(?:i|smart|windows )phone|symbian|up\.(?:browser|link)|tablet(?: browser| pc)|(?:hp-|rim |sony )tablet|...
Ways to circumvent the same-origin policy
...e the server would be acting as a proxy to any remote location.
If using mod_proxy in Apache, the fundamental configuration directive to set up a reverse proxy is the ProxyPass. It is typically used as follows:
ProxyPass /ajax/ http://other-domain.com/ajax/
In this case, the browser wou...
What integer hash function are good that accepts an integer hash key?
...
Knuth's multiplicative method:
hash(i)=i*2654435761 mod 2^32
In general, you should pick a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly.
Edit: The b...
How do I detect unsigned integer multiply overflow?
...ed ints representing mathematical positive integers, not positive integers mod 2^32 (or 2^64). The distinction between overflow as a deviation from mathematical infinite-sized integer behaviour, and overflow as an undefined behaviour in the language seems rarely to be made explicit.
...
What's the algorithm to calculate aspect ratio?
...
function gcd (a,b):
if b == 0:
return a
return gcd (b, a mod b)
In C:
static int gcd (int a, int b) {
return (b == 0) ? a : gcd (b, a%b);
}
int main(void) {
printf ("gcd(1024,768) = %d\n",gcd(1024,768));
}
And here's some complete HTML/Javascript which shows one way t...
Maximum on http header values?
...the value on apache 2.4 which remains the same : httpd.apache.org/docs/2.4/mod/core.html#limitrequestfieldsize : Apache 2.0, 2.2,2.4: 8K
– Med Ali Difallah
Apr 4 '17 at 14:15
...
How does the MapReduce sort algorithm work?
... in the partitioning (after map, before reduce).
The paper uses hash(key) mod R as the partitioning example, but this is not the only way to partition intermediate data to different reduce tasks.
Just add boundary conditions to @Yuval F 's answer to make it complete: suppose min(S) and max(S) is t...