What is the issue with variable linking in PHP code as shown in the example provided?

The issue with variable linking in PHP code is that it can lead to unexpected behavior and make the code harder to debug. To solve this issue, it is recommended to use the `&` symbol when assigning variables by reference, ensuring that changes to one variable will reflect in the other. Example of fixing variable linking in PHP code: 

// Incorrect variable linking
$var1 = 5;
$var2 = &$var1;

$var2 = 10; // $var1 will also be changed to 10

echo $var1; // Output: 10

// Correct variable linking
$var1 = 5;
$var2 = &$var1;

$var2 = 10; // $var1 will also be changed to 10

echo $var1; // Output: 10

Keywords

variable linking PHP code example issue error

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