Is it necessary to use concatenation operators or can numbers be directly added to variables in PHP?

In PHP, numbers can be directly added to variables without the need for concatenation operators. This is because PHP automatically converts variables to numbers when performing arithmetic operations. Therefore, you can simply use the addition operator (+) to add numbers to variables without explicitly converting them to strings. 

$number = 5;
$sum = $number + 10;

echo $sum; // Output: 15

Keywords

concatenation operators numbers variables PHP addition

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