如何从 function 中检索变量？

Question

I know there are a few items out on the internet over how to achieve this, but I can't get it to work... Can anyone please point me in the right direction?

I currently have two functions. I want to use the variable ( $new_data ) from function1 inside function2.

Function 1:

function manipulate_form_submission( $record, $ajax_handler ) {
    $form_name = $record->get_form_settings( 'form_name' );
    $form_data = $record->get( 'fields' );
    
    //change the names of fields before we send them somewhere
    $new_data = array(
        'email'         => isset( $form_data['email']['value'] ) ? $form_data['email']['value'] : '',
        'url'           => isset( $form_data['url']['value'] ) ? $form_data['url']['value'] : ''
    )
}

Function 2:

add_action( 'woocommerce_payment_complete', 'so_payment_complete' );
function so_payment_complete( $order_id ){
    $order = wc_get_order( $order_id );
    $response = wp_remote_post( 'https://mywebsite.com/insert_values.php', array( 'body' => $new_data) );
    
}

Thanks in advance!

Answer 1

Just initialize the variable outside the two functions like this:

<?php
$new_data = false;
function manipulate_form_submission( $record, $ajax_handler ) {
    global $new_data;
    $new_data = "New value";
}
function so_payment_complete( $order_id ){
    // The variable is accessible here
    global $new_data;
    echo $new_data;
}
?>