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How do I uniquely identify computers visiting my web site?

..., fingerprints changed quite rapidly, but even a simple heuristic was usually able to guess when a fingerprint was an “upgraded” version of a previously observed browser’s fingerprint, with 99.1% of guesses correct and a false positive rate of only 0.86%. We discuss what privacy thr...
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phpinfo() - is there an easy way for seeing it?

...ow, but you can't see the phpinfo(); contents without making the function call. Obviously, the best approach would be to have a phpinfo script in the root of your web server directory, that way you have access to it at all times via http://localhost/info.php or something similar (NOTE: don't do this...
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Convert Python dict into a dataframe

...DataFrame(d) ValueError: If using all scalar values, you must must pass an index You could take the items from the dictionary (i.e. the key-value pairs): In [11]: pd.DataFrame(d.items()) # or list(d.items()) in python 3 Out[11]: 0 1 0 2012-07-02 392 1 2012-07-06 392 2 201...
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Using a .php file to generate a MySQL dump

... can be done by the command itself. That external command will : be a call to mysqldump, with the right parameters, and redirect the output to a file. For example : mysqldump --user=... --password=... --host=... DB_NAME > /path/to/output/file.sql Which means your PHP code would look li...
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Python: Find in list

...ult value]) Finding the location of an item For lists, there's also the index method that can sometimes be useful if you want to know where a certain element is in the list: [1,2,3].index(2) # => 1 [1,2,3].index(4) # => ValueError However, note that if you have duplicates, .index always ...
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Paste multiple columns together

... @roschu Either will work. Indexing a data.frame with a single character vector will be a column indexing, despite the first argument usually being the row index. – Brian Diggs Feb 15 '15 at 2:16 ...
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Any way to break if statement in PHP?

... /* SUCCESS */ } else { clean_all_processes(); } } else { clean_all_processes(); } } else { clean_all_processes(); } Good looking code do { if( !process_x() ) { clean_all_processes(); break; } /* do a...
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MySQL Query GROUP BY day / month / year

...ould not perform well because a format function wouldn't be able to use an index on the date column. – Sonny Oct 10 '11 at 13:09 ...
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Is there an interactive way to learn Vim? [closed]

...pt.php?script_id=3409 Screencasts: http://derekwyatt.org/vim/tutorials/index.html http://vimcasts.org share | improve this answer | follow | ...
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Angular JS break ForEach

...Script", "Java", "CoffeeScript", "TypeScript"]; ary.some(function (value, index, _ary) { console.log(index + ": " + value); return value === "JavaScript"; }); Example for every: var ary = ["JavaScript", "Java", "CoffeeScript", "TypeScript"]; ary.every(function(value, index, _ary) { ...