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How to refresh an IFrame using Javascript?

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Local (?) variable referenced before assignment [duplicate]

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How to remove all the null elements inside a generic list in one go?

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What is the cleanest way to ssh and run multiple commands in Bash?

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Installing PDO driver on MySQL Linux server

... to install the necessary PDO parts from apt using sudo apt-get install php5-mysql There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO. ...
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How to create composite primary key in SQL Server 2008

... 250 create table my_table ( column_a integer not null, column_b integer not null, co...
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What's the @ in front of a string in C#?

... answered Feb 17 '09 at 9:57 Richard EvRichard Ev 47.6k5353 gold badges179179 silver badges271271 bronze badges ...
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Detect encoding and make everything UTF-8

...need to know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF-8. I did it because a service was giving me a feed of data all messed up, mixing UTF-8 and Latin1 in the s...
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When to use margin vs padding in CSS [closed]

...ackground color/image, but not the margin. div.box > div { height: 50px; width: 50px; border: 1px solid black; text-align: center; } div.padding > div { padding-top: 20px; } div.margin > div { margin-top: 20px; } <h3>Default</h3> <div class="box"> <div>A&...
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How do I set default values for functions parameters in Matlab?

...gainst the number of arguments. Something like: function f(arg1, arg2, arg3) if nargin < 3 arg3 = 'some default' end end There are a few fancier things you can do with isempty, etc., and you might want to look at Matlab central for some packages that bundle these sorts of things. ...