What is the significance of properly defining variables in a PHP script to avoid errors?

Properly defining variables in a PHP script is significant to avoid errors such as undefined variable notices or unexpected behavior in the code. By defining variables before using them, you ensure that they exist and have a specific value, reducing the chances of runtime errors. To define variables, you can use the syntax $variableName = value; before using the variable in your script. 

$name = "John Doe";
$age = 30;
$email = "john.doe@example.com";

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

Keywords

PHP variables error handling data types programming.

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