References (Using & ):
In PHP, assigning by reference or passing by reference allows two variables to refer to the same memory location. Use & between variables to make them references. Changing one will change the other. This is useful for updating a variable within a function or linking variables, but can lead to confusion if overused.
Branislav (NoOneNeo) Paunovic
Essential PHP S&S Elements
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References (Using & ):
In PHP, assigning by reference or passing by reference allows two variables to refer to the same memory location. Use & between variables to make them references. Changing one will change the other. This is useful for updating a variable within a function or linking variables, but can lead to confusion if overused.
$a = 5;
$b = &$a; // $b references $a
$b = 7;
echo $a; // Outputs: 7 (because $b changed $a by reference)
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