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Calculate number of hours between 2 dates in PHP
...riod not being able to generate dates when the start date is in the future from the end date. See: 3v4l.org/Ypsp1 to use a negative date, you need to specify a negative interval, DateInterval::createFromDateString('-1 hour'); with a start date in the past of from the end date.
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Minimum and maximum date
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From the spec, §15.9.1.1:
A Date object contains a Number indicating a particular instant in time to within a millisecond. Such a Number is called a time value. A time value may also be NaN, indicating that the Date object ...
Copy array by value
...rray();
const objectPrototype = new Object(); // or `new function () {}`
From these elements we can create three types of arrays.
// 1) Array of literal-values (boolean, number, string)
const type1 = [true, 1, "true"];
// 2) Array of literal-structures (array, object)
const type2 = [[], {}];
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How to install PostgreSQL's pg gem on Ubuntu?
...tion for pg-0.13.1...
{yea - finally success} !!
!note that the output from running pg_config lacks the item -lpq in the LIBS variable on my Ubuntu / Postresql install!!
and why the switch from pq to pg in certain places -- confusing to newbie ??
the thing I still do not understand is ...
Refresh a page using PHP
...n the screen, like stock prices, but not use that information in a form or from javascript, perhaps use an iframe tag pointing to a page with just the information being updated, and with a delay appropriate to how current the information must be.
– Patanjali
Oc...
How to tell if a tag failed to load
...it should be ok to only support this on next gen browsers for KISS IMHO).
From the spec:
If the src attribute's value is the
empty string or if it could not be
resolved, then the user agent must
queue a task to fire a simple event
named error at the element, and
abort these steps.
~...
How to make Twitter Bootstrap menu dropdown on hover rather than click
...y as block when the appropriate li tag is hovered over. Taking the example from the twitter bootstrap page, the selector would be as follows:
ul.nav li.dropdown:hover > ul.dropdown-menu {
display: block;
}
However, if you are using Bootstrap's responsive features, you will not want thi...
In a javascript array, how do I get the last 5 elements, excluding the first element?
...ind having to load a huge javascript minified file if your trying to do it from your browser.
_.slice(_.rest(arr), -5)
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What are differences between PECL and PEAR?
... @troelskn, You call that a "distribution channel"? How is it different from a normal tomdickharry PHP library? Are you going to call jQuery a "distribution channel" too?
– Pacerier
Oct 14 '14 at 5:46
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Why are only final variables accessible in anonymous class?
...y though, if you want the same sort of functionality as C# where variables from different scopes can be "instantiated" different numbers of times.
– Jon Skeet
Jan 19 '11 at 7:15
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