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How do I get the current date and time in PHP?

... Since PHP 5.2.0 you can use the DateTime() class: use \Datetime; $now = new DateTime(); echo $now->format('Y-m-d H:i:s'); // MySQL datetime format echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3 And to specify the timezone: $now = new DateTime(null, new D...
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Max size of an iOS application

... is still the same with the exception of the Executable File size which is now limited to 60MB's. These changes can be found on page 237 of the guide. As of January 10, 2013 The above information is still the same with the exception of the Executable File size which is now limited to 60MB's. Thes...
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Best way to create unique token in Rails?

... -- Update -- As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord's secure token implementation. -- Rails 4 & 3 -- Just for future reference, creating safe random token and ensuring it's uniqueness for the model (when using Ruby 1.9 and ActiveR...
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What is the difference between a shim and a polyfill?

... Shim If you are familiar with the adapter pattern, then you know what a shim is. Shims intercepts API calls and creates an abstract layer between the caller and the target. Typically shims are used for backward compability. For instance the es5-shim npm package will let you write ECMAS...
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How to write a Python module/package?

... tasks at work and never really bothered packaging them for others to use. Now I have been assigned to make a Python wrapper for a REST API. I have absolutely no idea on how to start and I need help. ...
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Generate .pem file used to set up Apple Push Notifications

...wnload" button to download the certificate (.cer file) you've created just now. - Double click the downloaded file to install the certificate into Keychain Access on your Mac. Step 7: On your Mac, go to "Keychain", look for the certificate you have just installed. If unsure which certificate is the...
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I lost my .keystore file?

... Now it is possible don't worry, here is the full and final steps to reset .JKS file. Step-1 Download the UPLOAD CERTIFICATE (file name - upload_cert.der) from your Google Play Store Console Step-2 Go to this LINK http...
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How does `is_base_of` work?

...tness anymore. In an ordinary overload resolution scenario, the call would now be ambiguous because normally the return type won't participate in overload resolution. For conversion functions, however, there is a backdoor. If two conversion functions are equally good, then the return type of them de...
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Convert LocalDate to LocalDateTime or java.sql.Timestamp

...ttribute(Timestamp ts) { return ts.toLocalDateTime(); } } So now it is relative timezone independent time. Additionally it is easy do: LocalDate ld = ldt.toLocalDate(); LocalTime lt = ldt.toLocalTime(); Formatting: DateTimeFormatter DATE_TME_FORMATTER = DateTimeFormatter.ofPat...
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Android image caching

... And now the punchline: use the system cache. URL url = new URL(strUrl); URLConnection connection = url.openConnection(); connection.setUseCaches(true); Object response = connection.getContent(); if (response instanceof Bitmap) {...