What potential issue arises when reusing the variable $anfr in the new code?

The potential issue that arises when reusing the variable $anfr in the new code is that it may contain unexpected or unintended values from its previous use, leading to incorrect behavior or errors in the program. To solve this issue, we should unset or reinitialize the variable before reusing it to ensure that it contains the correct value for the new context.

// Unset or reinitialize the variable $anfr before reusing it
unset($anfr);
$anfr = "new value";