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Check if $_POST exists

...ugustus Francis's answer, empty() is not correct for choice #1, because in php, the string '0' is equivalent to false - and empty() returns true for all values equivalent to false. So using empty, the code would skip printing if the value was '0'. If you want to exclude the empty string, see Augustu...
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Is the practice of returning a C++ reference variable evil?

... return i; // DON'T DO THIS. } That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil: int& getInt() { int* i = new int; return *i; // DON'T DO THIS. } Because now the client has to eventually do the strange: int&...
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std::function vs template

...pe-erasure magic for the storage. Generally, this implies a dynamic memory allocation (by default through a call to new). It's well known that this is a quite costly operation. The standard (20.8.11.2.1/5) encorages implementations to avoid the dynamic memory allocation for small objects which, tha...
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How to get innerHTML of DOMNode?

What function do you use to get innerHTML of a given DOMNode in the PHP DOM implementation? Can someone give reliable solution? ...
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Remove first 4 characters of a string with PHP

How can I remove the first 4 characters of a string using PHP? 7 Answers 7 ...
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Error in exception handler. - Laravel

...nd this helpful. But, it later creates problems when you're trying to run 'php artisan migrate ...' - as the '/app/storage/' folder gives you 'Permission Denied' error - and you go along fixing all the permissions to owner 'www-data', until you get to '/bootstrap/compiled.php' permissions error. Is ...
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Check if URL has certain string with PHP

... worked for me with php if(strpos($_SERVER['REQUEST_URI'], 'shop.php') !== false){ echo 'url contains shop'; } share | improve this answer ...
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Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?

... [[NSObject]alloc]init] does not equal TRUE or YES. So testing for object initialization with if ([[NSObject]alloc]init]==TRUE) will fail. I've never been comfortable with a Language defining a singular "true" value when in fact any non ...
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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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How to display HTML tags as plain text [duplicate]

... If the question's text were to be generated by PHP, htmlspecialchars() does what this answer suggests: replace the less-than and greater-than signs (and others) with their HTML entities. But the question does not specify, so this more general answer is a superset of all t...