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How to loop through an associative array and get the key? [duplicate]

... using PHP 5, you should avoid using foreach by reference values and since all foreaches use internal array pointer ( current($Array) ) nesting foreaches or using PHP array functions can do weird things. – Chaoix Jul 12 '19 at 15:13 ...
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How to randomize (or permute) a dataframe rowwise and columnwise?

...] 1 0 0 1 0 [4,] 0 0 1 0 1 To explain the call: out <- permatswap(mat, times = 99, burnin = 20000, thin = 500, mtype = "prab") times is the number of randomised matrices you want, here 99 burnin is the number of swaps made before we start taking random samples....
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SVN Repository Search [closed]

... findstr filename Otherwise checkout and do filesystem search: egrep -r _code_ . share | improve this answer | follow | ...
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What is the difference between UTF-8 and ISO-8859-1?

...e points of the Unicode character set, whereas UTF-8 can be used to encode all code points. At physical encoding level, only codepoints 0 - 127 get encoded identically; code points 128 - 255 differ by becoming 2-byte sequence with UTF-8 whereas they are single bytes with Latin-1. ...
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Type.GetType(“namespace.a.b.ClassName”) returns null

...Is this a 'trick' or an actual method? I can't find this in documentation -_- . By the way, it ends my 1 week suffer! thanks – DnR Dec 29 '14 at 2:41 1 ...
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What is the email subject length limit?

How many characters are allowed to be in the subject line of Internet email? I had a scan of The RFC for email but could not see specifically how long it was allowed to be. I have a colleague that wants to programmatically validate for it. ...
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Scala downwards or decreasing for loop?

... answered May 13 '14 at 21:54 LP_LP_ 92477 silver badges1919 bronze badges ...
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Secure random token in Node.js

...oding in node is not url-safe, it includes / and + instead of - and _ . Therefore, the easiest way to generate such token I've found is ...
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How can I force a long string without any blank to be wrapped?

... Place zero-width spaces at the points where you want to allow breaks. The zero-width space is ​ in HTML. For example: ACTGATCG​AGCTGAAG​CGCAGTGC​GATGCTTC​GATGATGC ...
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docker error: /var/run/docker.sock: no such file or directory

...ker file that runs builds an image and run the container. I am on mac, installed boot2docker and have the DOCKER_HOST env set up. ...