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PHP foreach change original array values
..., passing by reference (&) is ... controversial. I recommend not using it unless you know why you need it and test the results.
I would recommend doing the following:
foreach ($fields as $key => $field) {
if ($field['required'] && strlen($_POST[$field['name']]) <= 0) {
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Where are shared preferences stored?
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edited Oct 16 '17 at 14:04
sziraqui
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The point of test %eax %eax [duplicate]
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CMP subtracts the operands and sets the flags. Namely, it sets the zero flag if the difference is zero (operands are equal).
TEST sets the zero flag, ZF, when the result of the AND operation is zero. If two operands are equal, their bitwise AND is zero when both are zero. TEST a...
Get last n lines of a file, similar to tail
I'm writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom.
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Regex doesn't work in String.matches()
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Welcome to Java's misnamed .matches() method... It tries and matches ALL the input. Unfortunately, other languages have followed suit :(
If you want to see if the regex matches an input text, use a Pattern, a Matcher and the .find() method of the matcher:
Pattern p = Pat...
PHP global in functions
What is the utility of the global keyword ?
7 Answers
7
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What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
Can anyone give a definitive explanation on the relationship between UIView's setNeedsLayout , layoutIfNeeded and layoutSubviews methods? And an example implementation where all three would be used. Thanks.
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best way to get the key of a key/value javascript object
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perhaps it's an indication of my limited understanding, but this answer seems incredibly verbose (admittedly reusable) for something as simple as getting a key/value. Shouldn't @Michael Benin answer be marked as the best one?
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find() with nil when there are no records
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edited Jul 10 '17 at 10:14
answered Mar 7 '12 at 15:47
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How can I reliably get an object's address when operator& is overloaded?
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Let us first copy the code from Boost, minus the compiler work around bits:
template<class T>
struct addr_impl_ref
{
T & v_;
inline addr_impl_ref( T & v ): v_( v ) {}
inline operator T& () const { return v_; }
private:
addr_impl_ref & operator=(const addr_impl_re...