How can inconsistent variable usage impact the functionality of a PHP script?

Inconsistent variable usage in a PHP script can lead to errors and unexpected behavior. This can occur when a variable is referenced with different names or in different formats throughout the script, causing confusion and making it difficult to track the flow of data. To solve this issue, it's important to maintain consistency in variable naming and usage throughout the script. 

<?php

// Inconsistent variable usage
$name = "John";
echo $nme; // This will cause an error

// Consistent variable usage
$name = "John";
echo $name; // This will output "John"

?>

Keywords

variable usage PHP script inconsistent functionality impact

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