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isset() and empty() - what to use

... $var; (a variable declared, but without a value in a class) From http://php.net/manual/en/function.empty.php As mentioned in the comments the lack of warning is also important with empty() PHP Manual says empty() is the opposite of (boolean) var, except that no warning is generated when...
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Resumable downloads when using PHP to send the file?

We are using a PHP scripting for tunnelling file downloads, since we don't want to expose the absolute path of downloadable file: ...
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HTTP authentication logout via PHP

...lso works (a "disconnect" link to this URL) instead of an http redirect in PHP... any downside to that? – moala Mar 21 '12 at 13:40 4 ...
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Convert PHP closing tag into comment

One of the lines in my script contains a PHP closing tag inside a string. Under normal operation this does not cause a problem, but I need to comment out the line. ...
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Convert seconds to Hour:Minute:Second

...e amount of days in the year starting with 0. You can obviously review the php date manual to cater to your specific needs. – Nightwolf Aug 11 '16 at 6:51  ...
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How to get parameters from a URL string?

...ery); echo $query['email']; If you want to get the $url dynamically with PHP, take a look at this question: Get the full URL in PHP share | improve this answer | follow ...
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Strtotime() doesn't work with dd/mm/YYYY format

... You can parse dates from a custom format (as of PHP 5.3) with DateTime::createFromFormat $timestamp = DateTime::createFromFormat('!d/m/Y', '23/05/2010')->getTimestamp(); (Aside: The ! is used to reset non-specified values to the Unix timestamp, ie. the time will be m...
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How to render a DateTime object in a Twig template

... Twig's date function uses the same format as the php function (from the Twig docs). For anyone looking for other formats, php.net/manual/en/function.date.php. – JonnyS Mar 19 '14 at 20:22 ...
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Creating .pem file for APNS?

...ed the above steps and now its working.I have kept the certificate and the php script on my local web server (Xampp). I am able to get the device token , and i am using it in the php script. The php script is able to connect and send payload data. But still then i am not able to get the PUSH Notifi...
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Hashing a string with Sha256

...ich you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.) For ASCII text, Encoding.UTF8 will definitely be suitable. If you're aiming for perfect compatibility with your friend's code, even on non-ASCII inputs, you'd better try a few test cases with non-ASCII ch...