What potential issue can arise when accessing the original values in the code snippet?

When accessing the original values in a code snippet, a potential issue that can arise is modifying the original values unintentionally. This can lead to unexpected behavior in the code and make debugging difficult. To avoid this issue, it is recommended to create a copy of the original values and work with the copy instead. 

// Creating a copy of the original values
$original_values = $values;

// Accessing and working with the copied values
foreach ($original_values as $key => $value) {
    // Perform operations on $value
}

Keywords

variable scope global keyword function local variable value modification

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