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Convert DateTime to String PHP

I have already researched a lot of site on how can I convert PHP DateTime object to String. I always see "String to DateTime" and not "DateTime to String" ...
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What does $$ (dollar dollar or double dollar) mean in PHP?

... It's a variable's variable. <?php $a = 'hello'; $$a = 'world'; // now makes $hello a variable that holds 'world' echo "$a ${$a}"; // "hello world" echo "$a $hello"; // "hello world" ?> ...
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What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?

... generated in the current scope (i.e. stored procedure, trigger, function, etc). IDENT_CURRENT(): returns the last identity value for a specific table. Don't use this to get the identity value from an INSERT, it's subject to race conditions (i.e. multiple connections inserting rows on the same table...
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Best way to clear a PHP array's values

...o I wrote it that way because of the authors question "Best way to clear a PHP array's values". It sais 'clear', not 'new instance'. Using unset will clear $foo from the symbol table. I we are talking about very large tables I'd probably recommend $foo = null; unset($foo); since that also would clea...
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Are “elseif” and “else if” completely synonymous?

... From the PHP manual: In PHP, you can also write 'else if' (in two words) and the behavior would be identical to the one of 'elseif' (in a single word). The syntactic meaning is slightly different (if you're familiar with C, this i...
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How do I remove  from the beginning of a file?

...S file that looks fine when I open it using gedit , but when it's read by PHP (to merge all the CSS files into one), this CSS has the following characters prepended to it:  ...
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Is it possible to delete an object's property in PHP?

...ght mind, convert an array into an object? It just makes no sense (even if PHP allows it). I will not encorage and spread bad programming habits by commenting on this :) No offense. – Yanick Rochon Mar 21 '14 at 2:54 ...
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Simplest way to detect a mobile device in PHP

...est way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...
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Can an Option in a Select tag carry multiple values?

... options in a HTML form: (the data will be collected and processed using PHP) 15 Answers ...
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Memcache Vs. Memcached [duplicate]

Someone can explain me the difference between Memcache and Memcached in PHP environment? What are the advantages of one over the other? Can you also suggest the criteria used to choose between one or the other? ...