How can variables be properly concatenated to avoid overwriting in PHP?

To avoid overwriting variables when concatenating in PHP, you can use curly braces to clearly separate the variables from the surrounding text. This ensures that the variables are properly concatenated without accidentally overwriting each other. 

// Example of concatenating variables without overwriting
$firstName = "John";
$lastName = "Doe";

// Using curly braces to concatenate variables
$fullName = "{$firstName} {$lastName}";

echo $fullName; // Output: John Doe

Keywords

variables concatenation overwriting PHP scope

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