Can a function be passed as a parameter to another function in PHP?

Yes, in PHP, you can pass a function as a parameter to another function. This is commonly done using anonymous functions or closures. By passing functions as parameters, you can create more flexible and reusable code. 

// Function that takes another function as a parameter
function processFunction($callback) {
    // Call the passed function
    $result = $callback();
    
    // Do something with the result
    echo "Result: " . $result;
}

// Define a function to be passed
$myFunction = function() {
    return "Hello, World!";
};

// Call the function and pass the defined function
processFunction($myFunction);

Keywords

PHP function parameter callback higher-order function

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