php pass variable to anonymous function
<?php $message = 'hello'; // No "use" $example = function () { var_dump($message); }; $example(); // Inherit $message $example = function () use ($message) { var_dump($message); }; $example(); // Inherited variable's value is from when the function // is defined, not when called $message = 'world'; $example(); // Reset message $message = 'hello'; // Inherit by-reference $example = function () use (&$message) { var_dump($message); }; $example(); // The changed value in the parent scope // is reflected inside the function call $message = 'world'; $example(); // Closures can also accept regular arguments $example = function ($arg) use ($message) { var_dump($arg . ' ' . $message); }; $example("hello"); ?>
