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1wdtv/only-one-in-cart.php

Created August 22, 2018 16:51
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only-one-in-cart.php
add_filter( 'woocommerce_add_to_cart_validation', 'lab_only_one_in_cart', 99, 2 );
function lab_only_one_in_cart( $passed, $added_product_id ) {
wc_empty_cart();
return $passed;
}
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