woocommerce_cart_needs_payment
Filter Hook: Note that woocommerce_cart_needs_payment is only used in WC_Checkout::process_checkout() to keep backwards compatibility.
Source: includes/class-wc-checkout.php:1185
WC_Checkout::get_value()
Method: Gets the value either from POST, or from the customer object. Sets the default values in checkout fields.
Source: includes/class-wc-checkout.php:1219
default_checkout_{$input}
Filter Hook: For logged in customers, pull data from their account rather than the session which may contain incomplete data.
Source: includes/class-wc-checkout.php:1261
WC_Checkout::process_customer()
Method: Create a new customer account if needed.
Source: includes/class-wc-checkout.php:1021
woocommerce_checkout_update_customer
Action Hook: Action hook to adjust customer before save.
Source: includes/class-wc-checkout.php:1088
WC_Checkout::send_ajax_failure_response()
Method: If checkout failed during an AJAX call, send failure response.
Source: includes/class-wc-checkout.php:1099
WC_Checkout::process_checkout()
Method: Process the checkout after the confirm order button is pressed.
Source: includes/class-wc-checkout.php:1124
WC_Checkout::get_posted_address_data()
Method: Get a posted address field after sanitization and validation.
Source: includes/class-wc-checkout.php:1204
WC_Checkout::validate_checkout()
Method: Validates that the checkout has enough info to proceed.
Source: includes/class-wc-checkout.php:838
WC_Checkout::set_customer_address_fields()
Method: Set address field for customer.
Source: includes/class-wc-checkout.php:889