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Are global variables in PHP considered bad practice? If so, why?
...se that global variable, and not only that, you have to figure out in what order those references to the global variable are accessed.
If you have a global variable in a piece of code it makes it difficult to isolate the functionality of that code. Why would you want to isolate functionality? So yo...
Can someone explain how to implement the jQuery File Upload plugin?
...this gem. The source is here --> jQueryFileUpload Rails.
Update:
In order to satisfy the commenter I've updated my answer. Essentially "use this gem, here is the source code" If it disappears then do it the long way.
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How to round up a number to nearest 10?
...d up, it rounds to the nearest 10. To solve this, add +5 to your number in order to round up. If you want to round down, do -5.
So in code:
round($num + 5, -1);
You can't use the round mode for rounding up, because that only rounds up fractions and not whole numbers.
If you want to round up to ...
Traits vs. interfaces
...a base class is overridden by a member inserted by a Trait. The precedence order is that members from the current class override Trait methods, which in return override inherited methods.
So - consider the following scenario:
class BaseClass {
function SomeMethod() { /* Do stuff here */ }
}
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MySQL query String contains
...he presence of a substring with like operator . With instr a phrase can be ordered like this select * from table order by instr(col1,"mystring")
– Radacina
Aug 1 '17 at 18:16
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continue processing php after sending http response
... I've tried other solutions, and only this one worked for me. Order of lines is important as well.
– Sinisa
Oct 1 '19 at 15:27
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How to loop through an associative array and get the key? [duplicate]
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@TrevorJohns, Is the order guaranteed?
– Pacerier
Apr 3 '15 at 18:39
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in_array() and multidimensional array
... only work in one dimension. You'll have to create a recursive function in order to check each depth.
– metrobalderas
Nov 8 '10 at 21:44
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Fastest Way to Find Distance Between Two Lat/Long Points
... @Quassnoi: A couple corrections: You'll probably want to switch the order of the coordinates to lat, long. Also, longitudinal distances are proportional the cosine of the latitude, not longitude. And you'll want to change it from multiplication to division, so your first coordinate would b...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...务器不仅浪费了内存，而且还必须自己维护数据的不一致问题，有了Memcached插件，这些问题都不存在了，而且借助MySQL本身的复制功能，我们可以说是变相的实现了Memcached的复制，这更是意外之喜。
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