Level 75
& sets a reference to the variable. Top one is probably an updated at PHP 8 version of same.
Mar 9, 2021
3
Level 3
what is the difference between these two statements in php?
I was reading about arrow functions in php documentions and I came across this code
fn($x = 42) => $x;
fn(&$x) => $x;
what is the difference between these two statements and what they do ?
Level 39
fn($x = 42) : is a function with one or 0 parameter, if 0, default value 42
fn(&$x) : is a function with one parameter passed as reference, meaning if changed in the function, the new value of $x will be pass in the main.
Level 75
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