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Implications of foldr vs. foldl (or foldl')

...gregate, Smalltalk's inject:into:, PHP's array_reduce, Mathematica's Fold, etc. Common Lisp's reduce defaults to left fold but there's an option for right fold. share | improve this answer ...
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How to destroy an object?

...It will stay there, however if you unset the object and your script pushes PHP to the memory limits the objects not needed will be garbage collected. I would go with unset() (as opposed to setting it to null) as it seems to have better performance (not tested but documented on one of the comments fr...
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PHP code to convert a MySQL query to CSV [closed]

What is the most efficient way to convert a MySQL query to CSV in PHP please? 6 Answers ...
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Any way to break if statement in PHP?

Is there any command in PHP to stop executing the current or parent if statement, same as break or break(1) for switch / loop . For example ...
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pass post data with window.location.href

...any sensitive / personal data (i.e names, addresses, emails addresses, DOB etc) in either of these. Session Storage is a more secure option for anything sensitive, it's only accessible to the origin that set the items and also clears as soon as the browser / tab is closed. IndexDB is a littl...
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convert_tz returns null

...cat /tmp/zut.sql >> /tmp/mysql_tzinfo_to.sql mysql --defaults-file=/etc/mysql/my.cnf --user=verifiedscratch -p mysql < /tmp/mysql_tzinfo_to.sql share | improve this answer | ...
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How to loop through an associative array and get the key? [duplicate]

...do: foreach ($arr as $key => $value) { echo $key; } As described in PHP docs. share | improve this answer | follow | ...
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How to get file_get_contents() to work with HTTPS?

...he following script to see if there is an https wrapper available for your php scripts. $w = stream_get_wrappers(); echo 'openssl: ', extension_loaded ('openssl') ? 'yes':'no', "\n"; echo 'http wrapper: ', in_array('http', $w) ? 'yes':'no', "\n"; echo 'https wrapper: ', in_array('https', $w) ? 'y...
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img tag displays wrong orientation

... answered Jan 11 '15 at 0:58 ChetChet 13.3k1212 gold badges5353 silver badges9797 bronze badges ...
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What's the difference between :: (double colon) and -> (arrow) in PHP?

There are two distinct ways to access methods in PHP, but what's the difference? 6 Answers ...