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json_encode is returning NULL?

...ser didn't solve my problem. For those in same situation, here is how I finally handled this error: Just utf8_encode each of your results. while($row = mysql_fetch_assoc($result)){ $rows[] = array_map('utf8_encode', $row); } Hope it helps! ...
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How to import CSV file data into a PostgreSQL table?

...rticle. Solution paraphrased here: Create your table: CREATE TABLE zip_codes (ZIP char(5), LATITUDE double precision, LONGITUDE double precision, CITY varchar, STATE char(2), COUNTY varchar, ZIP_CLASS varchar); Copy data from your CSV file to the table: COPY zip_codes FROM '/path/to/csv/ZI...
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Xcode variables

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Efficient way to determine number of digits in an integer

...For added efficiency, if you know that your input numbers will be mostly small ones (I'm guessing less than 100,000), then reverse the tests: if (x < 10) return 1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster. – squelart ...
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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?

...dy via response.getOutputStream() or response.getWriter() . Should one call .close() on this OutputStream after it has been written to? ...
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How to reorder data.table columns (without copying)

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SQLite - UPSERT *not* INSERT or REPLACE

...e columns in the table: ID, NAME, ROLE BAD: This will insert or replace all columns with new values for ID=1: INSERT OR REPLACE INTO Employee (id, name, role) VALUES (1, 'John Foo', 'CEO'); BAD: This will insert or replace 2 of the columns... the NAME column will be set to NULL or the def...
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How far can memory leaks go?

... limits the number of active connections, may accidentally cause denial of service. Not closing database transactions may cause you to lose uncommitted data. – Lie Ryan Mar 17 '13 at 23:25 ...
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PyPy — How can it possibly beat CPython?

... an object can save you the need to do multiple pointer dereferences to finally arrive at the method you want to call. Q2. Which Python implementation was used to implement PyPy? The PyPy interpreter is implemented in RPython which is a statically typed subset of Python (the language and not the ...
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Homebrew: List only installed top level formulas

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