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What does $$ (dollar dollar or double dollar) mean in PHP?
...ample, if you consider this portion of code :
$real_variable = 'test';
$name = 'real_variable';
echo $$name;
You will get the following output :
test
Here :
$real_variable contains test
$name contains the name of your variable : 'real_variable'
$$name mean "the variable thas has its name co...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
...tions when a return value might be absent. The intent is that the caller immediately check the Optional and extract the actual value if it's present. If the value is absent, the caller can substitute a default value, throw an exception, or apply some other policy. This is typically done by chaining ...
Should I use tag for icons instead of ? [closed]
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some people even go further and misuse other elements, like <tt> = tooltip and so on... wanna help me found ATSMOHE? "Against the semantic misuse of HTML-Elements"
– Christoph
Jun 21...
What type of hash does WordPress use?
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The WordPress password hasher implements the Portable PHP password hashing framework, which is used in Content Management Systems like WordPress and Drupal.
They used to use MD5 in the older versions, but sadly for me, no more. You can generate hashes using ...
How do I record audio on iPhone with AVAudioRecorder?
...v Center and only reference to the classes. I am a newbie at iPhone development, so I am looking for a simple sample to get me started.
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HTML table headers always visible at top of window when viewing a large table
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@MustModify stackoverflow is not a good place to ask me questions. report an issue on github, even if its just a question about how to get it working. Ill respond there usually in under a day. Here ill probably respond in just under a year :)
– mkoryak
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Count number of records returned by group by
...ference: This does not work on DB/2 (in my case on IBM iSeries). See my comment at Thomas´s answer
– Bjinse
Dec 13 '12 at 8:05
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Stopping scripters from slamming your website
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How about implementing something like SO does with the CAPTCHAs?
If you're using the site normally, you'll probably never see one. If you happen to reload the same page too often, post successive comments too quickly, or something else tha...
How to render an ASP.NET MVC view as a string?
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Here's what I came up with, and it's working for me. I added the following method(s) to my controller base class. (You can always make these static methods somewhere else that accept a controller as a parameter I suppose)
MVC2 .ascx style
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difference between variables inside and outside of __init__()
Is there any difference at all between these classes besides the name?
10 Answers
10
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