How can the issue of incorrect variable usage in PHP scripts be avoided?

Incorrect variable usage in PHP scripts can be avoided by properly declaring and initializing variables before using them. This helps to prevent errors such as undefined variable notices or unexpected behavior in the script. It is important to ensure that variables are used consistently throughout the script and that their scope is clearly defined. 

// Correct variable declaration and usage
$name = "John";
$age = 30;

echo "Name: " . $name . "<br>";
echo "Age: " . $age;

Keywords

variable usage PHP scripts error prevention debugging data validation

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