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PHP Fatal error: Call to undefined function json_decode()

... The same issue with 7.1 apt-get install php7.1-json sudo nano /etc/php/7.1/mods-available/json.ini Add json.so to the new file Add the appropriate sym link under conf.d Restart apache2 service (if needed) sha...
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Mongoose, Select a specific field with find

... multiple fields would be ['name', 'field2', 'field3', 'etc'] instead of just 'name' – Eray T Dec 24 '18 at 19:05 add a comment  |  ...
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How to find the kth smallest element in the union of two sorted arrays?

...of a number of elements in one of the arrays proportional to its length in order to make the run-time logarithmic. (Here we are getting rid of half). In order to do that, we need to select one array whose one of the halves we can safely ignore. How do we do that? By confidently eliminating the half ...
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PostgreSQL query to list all table names?

...l databases SELECT table_schema,table_name FROM information_schema.tables ORDER BY table_schema,table_name; share | improve this answer | follow | ...
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Good examples of MVVM Template

...convenient tools like dependency injection, commanding, event aggregation, etc to easily try out different patterns that suit you. The prism release: http://www.codeplex.com/CompositeWPF It includes a pretty decent example app (the stock trader) along with a lot of smaller examples and how to's....
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Use of “instanceof” in Java [duplicate]

... if( param instanceof Comparable) { //subclasses of Number like Double etc. implement Comparable //other subclasses might not -> you could pass Number instances that don't implement that interface System.out.println("param is comparable"); } } Note that if you have to use that op...
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FixedThreadPool vs CachedThreadPool: the lesser of two evils

... How Java maps threads to OS threads, how that maps threads to CPU threads etc.? I'm asking because creating 150 threads within in ONE JRE only makes sense if you have massive CPU cores/threads underneath, which most likely is not the case. Depending on the OS and RAM in use, creating more than n th...
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Uses for Optional

...sirable" ways (e.g. as method parameters, in collections, in constructors, etc.) if that really is not intended usage? – skomisa Feb 20 '15 at 0:33 ...
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?

... do not allow authors to specify distinct style (colors, fonts, alignment, etc.) for the list marker or adjust its position This method is also not suitable for the <img> tag as the conversion cannot be made between element types, and here's the limited, non compliant hack that doesn't work...
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How to use php serialize() and unserialize()

... what is the explanation of those a,i,s etc in a:3:{i:1;s:6:"elem 1";i:2;s:6:"elem 2";i:3;s:7:" elem 3";} ? And if u don't mind , an example of serializing the array(might not be relevant to the theme of this post ) to send it to js. – Istiaqu...