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Simplest way to detect a mobile device in PHP
...est way to tell if a user is using a mobile device to browse my site using PHP?
15 Answers
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Pimpl idiom vs Pure virtual class interface
...ect it knows to be this.
On the user side of the code, a new A will first allocate sizeof(A) bytes of memory, then hand a pointer to that memory to the A::A() constructor as this.
If in a later revision of your library you decide to drop the integer, make it larger, smaller, or add members, there'...
What does $$ (dollar dollar or double dollar) mean in PHP?
...
It's a variable's variable.
<?php
$a = 'hello';
$$a = 'world'; // now makes $hello a variable that holds 'world'
echo "$a ${$a}"; // "hello world"
echo "$a $hello"; // "hello world"
?>
...
How can I get the last 7 characters of a PHP string?
...r for the 2nd argument.
$newstring = substr($dynamicstring, -7);
From the php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
...
Remove useless zero digits from decimals in PHP
...n officially suggested method for typecasting... search "type juggling" on php.net
– Gergely Lukacsy
May 6 '16 at 8:44
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show 2 more comment...
How to push both value and key into PHP array
...to combine arrays and keep the keys of the added array. For example:
<?php
$arr1 = array('foo' => 'bar');
$arr2 = array('baz' => 'bof');
$arr3 = $arr1 + $arr2;
print_r($arr3);
// prints:
// array(
// 'foo' => 'bar',
// 'baz' => 'bof',
// );
So you could do $_GET += array('on...
Software Design vs. Software Architecture [closed]
...
I'd say you are right, in my own words;
Architecture is the allocation of system requirements to system elements. Four statements about an architecture:
It can introduce non-functional requirements like language or patterns.
It defines the interaction between components, interfaces,...
When to use a linked list over an array/array list?
...you know the number of elements in the array ahead of time so that you can allocate the correct amount of memory for the array
you need speed when iterating through all the elements in sequence. You can use pointer math on the array to access each element, whereas you need to lookup the node based...
No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '…' is therefor
...ttp://wordicious.com. (Maybe place the target URL relatively, like '/login.php', without the domain).
On a more general note:
If the problem is not a typo like the one of this question seems to be, the solution would be to add the Access-Control-Allow-Origin to the target domain. To add it, depends...
Logical Operators, || or OR?
...nlike many other languages where they return the last value checked. So in PHP (27 || 0) returns true, not 27.
– TextGeek
Sep 15 '17 at 15:32
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