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PHP + MySQL transactions examples
...ansaction
$db->beginTransaction();
// A set of queries; if one fails, an exception should be thrown
$db->query('first query');
$db->query('second query');
$db->query('third query');
// If we arrive here, it means that no exception was thrown
// i.e. ...
Memcache Vs. Memcached [duplicate]
Someone can explain me the difference between Memcache and Memcached in PHP environment?
What are the advantages of one over the other?
Can you also suggest the criteria used to choose between one or the other?
...
Turn off deprecated errors in PHP 5.3
...
Nope, the first one basically tells php to show ERROR/WARNING/PARSE/NOTICE errors, the second one tells php to show all but DEPRECATED errors.
– Robus
May 10 '10 at 15:17
...
How would you compare jQuery objects?
...there were multiple matches you'd need a loop of some sort to compare each one.
– Jimmy Cuadra
Mar 13 '10 at 2:06
1
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How do I set the maximum line length in PyCharm?
...ortant. Consistency within a project is more important. Consistency within one module or function is most important. But most importantly: know when to be inconsistent -- sometimes the style guide just doesn't apply.
– Krøllebølle
Feb 4 '16 at 10:08
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What's the rationale for null terminated strings?
...
From the horse's mouth
None of BCPL, B, or C supports
character data strongly in the
language; each treats strings much
like vectors of integers and
supplements general rules by a few
conventions. In both BCPL and B a
string literal deno...
A Space between Inline-Block List Items [duplicate]
...se 4px is rendered.
To avoid this you could run all your
lis together in one line, or block
the end tags and begin tags together
like this:
<ul>
<li>
<div>first</div>
</li><li>
<div>first</div>
<...
How to expand/collapse a diff sections in Vimdiff?
...
Aside from the ones you mention, I only use frequently when diffing the following:
:diffupdate :diffu -> recalculate the diff, useful when after making several changes vim's isn't showing minimal changes anymore. Note that it only work...
What is the difference between pip and conda?
...ORTRAN library dependencies). Conda installs from binary, meaning that someone (e.g., Continuum) has already done the hard work of compiling the package, and so the installation is easy.
There are also some differences if you are interested in building your own packages. For instance, pip is built...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
...what less CPU-intensive. On my Intel x86 (Core2 Quad Q6600, 2.4 GHz, using one core), I get this in 32-bit mode:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes per second, for a "...