woocommerce_product_single_add_to_cart_text

Filters the Add to cart button text on single product pages. Return your own label, per product if you like.

Type Filter
From WooCommerce
Since 2.1.0
Fired in includes/abstracts/abstract-wc-product.php

When it fires

WooCommerce applies this filter in the product's single_add_to_cart_text() method, which the single product templates use for the button label. The default is 'Add to cart'; external products use the button text you entered, or 'Buy product'.

The Add to Cart + Options block and the Store API use the same method, so the filter works with block themes too.

Parameters

Parameters
`$text`string	The button text. Default 'Add to cart'.
`$product`WC_Product	The product object.

What to return

The button text as a plain string. WooCommerce escapes it when printing.

Example: Say Pre-order now for products on backorder

PHP

add_filter( 'woocommerce_product_single_add_to_cart_text', function ( $text, $product ) {
	if ( $product->is_type( 'simple' ) && $product->is_on_backorder() ) {
		return __( 'Pre-order now', 'my-snippets' );
	}
	return $text;
}, 10, 2 );

Good to know

This only changes single product pages. Buttons on shop and category pages use woocommerce_product_add_to_cart_text.
For variable products the object passed in is the parent product, so the text is the same for every variation.