PHP 7.4 introduced Arrow functions. And it also introduced implicit by-value scope binding which eliminate the need for use keyword. Now if we want to use a variable out of a closure’s scope by …
Tag: pass-by-reference
How can I recursively search for and replace values inside of an unknown-depth multidimensional PHP array?
I’m working with a JSON string. I’m converting it to an associative array to find specific values and change those values when a certain key is found ([‘content’]). The depth of the array is always unknown and will always vary. Here is the function I wrote. It takes an array as an argument and passes it by reference so that
Best practice for PHP methods with regard to reference parameter or explicit return value
I’ve used both methods quite a bit but I recently wondered why I hadn’t standardized on one or the other, or if there was a best practice and what the reasons behind it are. While the returning references page at PHP states quite clearly, with respect to returning references: Only return references when you have a valid technical reason to
Why is calling a function (such as strlen, count etc) on a referenced value so slow?
I’ve just found something very strange in PHP. If I pass in a variable to a function by reference, and then call a function on it, it’s incredibly slow. If you loop over the inner function call and the variable is large it can be many orders of magnitude slower than if the variable is passed by value. Example: This
Are PHP Variables passed by value or by reference?
Are PHP variables passed by value or by reference? Answer It’s by value according to the PHP Documentation. By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed