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PHP Fatal error: Using $this when not in object context
...
In my index.php I'm loading maybe
foobarfunc() like this:
foobar::foobarfunc(); // Wrong, it is not static method
but can also be
$foobar = new foobar; // correct
$foobar->foobarfunc();
You can not invoke method this w...
Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
...nd going to "Help / Install New Software" menu, then just add a new Update Site with the following URL: http://plugins.genymotion.com/eclipse. Follow the steps indicated by Eclipse.
This emulator is fast and responsive.
GenyMotion allows you to control various sensors of your device including th...
How to Sort Multi-dimensional Array by Value?
...
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
function sortByOrder($a, $b) {
return $a['order'] - $b['order'];
}
usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous func...
Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...7)
But, there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time
so, __DIR__ is (or, should be) faste...
Saving timestamp in mysql table using php
... Type safety: FROM_UNIXTIME yields a native mysql date type while php's date() returns a string.
– Richard Tuin
May 20 '16 at 6:19
...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
...want to get the photo of. You can also use HTTPS as well.
You can use the PHP's file_get_contents function to read that URL and process the retrieved data.
Resource:
http://developers.facebook.com/docs/api
Note: In php.ini, you need to make sure that the OpenSSL extension is enabled to use thefi...
PHP String to Float
I am not familiar with PHP at all and had a quick question.
8 Answers
8
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How to Truncate a string in PHP to the word closest to a certain number of characters?
I have a code snippet written in PHP that pulls a block of text from a database and sends it out to a widget on a webpage. The original block of text can be a lengthy article or a short sentence or two; but for this widget I can't display more than, say, 200 characters. I could use substr() to cho...
Resumable downloads when using PHP to send the file?
We are using a PHP scripting for tunnelling file downloads, since we don't want to expose the absolute path of downloadable file:
...
isset() and empty() - what to use
... $var; (a variable declared, but without a value in a class)
From http://php.net/manual/en/function.empty.php
As mentioned in the comments the lack of warning is also important with empty()
PHP Manual says
empty() is the opposite of (boolean) var, except that no warning is
generated when...