What are the implications of not properly handling references in PHP code, and how can this be addressed?

Improperly handling references in PHP code can lead to unexpected behavior and potential bugs in your application. To address this, make sure to properly assign and pass references when necessary to avoid unintended side effects. 

// Incorrect way of handling references
$var1 = 5;
$var2 = $var1;
$var2 = 10;

echo $var1; // Output: 5

// Correct way of handling references
$var1 = 5;
$var2 = &$var1;
$var2 = 10;

echo $var1; // Output: 10

Keywords

references PHP code implications handling address

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