How can variables from one PHP function be used in another function?

To use variables from one PHP function in another function, you can pass the variables as parameters when calling the second function. This way, the second function will have access to the variables from the first function. Alternatively, you can declare the variables as global within the first function so that they can be accessed from any other function within the same script. 

<?php

function firstFunction() {
    $variable = "Hello";
    secondFunction($variable);
}

function secondFunction($var) {
    echo $var . " World!";
}

firstFunction();

?>

Keywords

PHP functions variables scope passing parameters

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