Function Parameters

Parameters let a function receive values from the call site.

function_parameters.php

<?php
function badge(string $name, int $level): string {
    return $name . ":" . $level;
}

$level = ;
$label = badge("Mia", $level);

echo "level=" . $level . "\n";
echo "label=" . $label . "\n";

<?php
function badge(string $name, int $level): string {
    return $name . ":" . $level;
}

$level = ;
$label = badge("Mia", $level);

echo "level=" . $level . "\n";
echo "label=" . $label . "\n";

<?php
function badge(string $name, int $level): string {
    return $name . ":" . $level;
}

$level = ;
$label = badge("Mia", $level);

echo "level=" . $level . "\n";
echo "label=" . $label . "\n";

parameter A parameter is a local name that receives an argument value when the function is called.