Is there a concept of pointer arithmetic in PHP and how can it be used effectively?
Pointer arithmetic is not directly supported in PHP like in languages such as C or C++. However, you can achieve similar functionality by using references in PHP. By assigning a reference to a variable, you can modify the original variable directly, effectively achieving a similar result to pointer arithmetic.
$number = 10;
$pointer =& $number;
$pointer += 5;
echo $number; // Output will be 15
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