WooCommerce - Create a coupon via PHP

gistfile1.txt

$coupon_code = 'UNIQUECODE'; // Code
$amount = '10'; // Amount
$discount_type = 'fixed_cart'; // Type: fixed_cart, percent, fixed_product, percent_product
					
$coupon = array(
	'post_title' => $coupon_code,
	'post_content' => '',
	'post_status' => 'publish',
	'post_author' => 1,
	'post_type'		=> 'shop_coupon'
);
					
$new_coupon_id = wp_insert_post( $coupon );
					
// Add meta
update_post_meta( $new_coupon_id, 'discount_type', $discount_type );
update_post_meta( $new_coupon_id, 'coupon_amount', $amount );
update_post_meta( $new_coupon_id, 'individual_use', 'no' );
update_post_meta( $new_coupon_id, 'product_ids', '' );
update_post_meta( $new_coupon_id, 'exclude_product_ids', '' );
update_post_meta( $new_coupon_id, 'usage_limit', '' );
update_post_meta( $new_coupon_id, 'expiry_date', '' );
update_post_meta( $new_coupon_id, 'apply_before_tax', 'yes' );
update_post_meta( $new_coupon_id, 'free_shipping', 'no' );

Hello,

I want to generate woocommerce coupon code dynamically.

My requirements is that after complete the order automatically generate one coupon code in admin side woocommerce coupon code list for particular product.

So any one know my above requirement solutions then please help me.

Thanks,
Ketan.

for some reason i am getting that wp_insert_post is undefined after i added some code to this function,
please take a look at my code if you may let me know what i am doing wrong, just to let you know, this function is in a separate like which is included in functions.php and i am posting to that file using jQuery.post() from index.php
this is code:
`<?php

$subEmail = isset($_POST['subEmail']) ? $_POST['subEmail'] : null;

if($subEmail){
    justDoIt($subEmail);
}

function justDoIt($subEmail){

    define( 'SHORTINIT', true );
    // local
    require_once( $_SERVER['DOCUMENT_ROOT'] . '/wordpress/wp-load.php' );
    // live
    // require_once( $_SERVER['DOCUMENT_ROOT'] . '/wp-load.php' );
    global $wpdb;

    //Check if $subEmail is in DB
    $emailsQuery = 'SELECT meta_value FROM wp_postmeta WHERE meta_key = "_field_newsletteremail"';

    $dbEmails = $wpdb->get_results( $emailsQuery );

    foreach($dbEmails as $emailObj){
        if($subEmail === $emailObj->meta_value){
            echo "exists";
            die();
        }
    }
    //else create a coupon for him
    $couponCodeValue = $subEmail.time();
    $couponCodeValue = str_replace(' ', '', $couponCodeValue);
    $couponCodeValue = md5($couponCodeValue);

    //Get Existing Coupons we created
    $dbCoupons = $wpdb->get_results( 'SELECT post_title FROM wp_posts WHERE post_type = "shop_coupon" AND post_status = "publish"' );
    $x = 0;
    $y = 6;
    $couponCodeSixValue = substr($couponCodeValue, $x , $y);

    for($y; $y < strlen($couponCodeValue); $y++){
        //if code found generate new one, else just us the current
        if($dbCoupons[$i]->post_title === $couponCodeSixValue){
            $couponCodeSixValue = substr($couponCodeValue, ($x+1) , ($y+1));
        }
        $x++;
    }

    imagineme_create_coupon($couponCodeSixValue);

}


function imagineme_create_coupon( $couponCodeSixValue ){
    
    $coupon_code = $couponCodeSixValue; // Code
    $amount = '10'; // Amount
    $discount_type = 'fixed_cart'; // Type: fixed_cart, percent, fixed_product, percent_product
                        
    $coupon = array(
        'post_title' => ''.$coupon_code,
        'post_content' => '',
        'post_status' => 'publish',
        'post_author' => 1,
        'post_type'		=> 'shop_coupon'
    );
    $new_coupon_id = wp_insert_post( $coupon );
                        
    // Add meta
    update_post_meta( $new_coupon_id, 'discount_type', $discount_type );
    update_post_meta( $new_coupon_id, 'coupon_amount', $amount );
    update_post_meta( $new_coupon_id, 'individual_use', 'yes' );
    update_post_meta( $new_coupon_id, 'product_ids', '' );
    update_post_meta( $new_coupon_id, 'exclude_product_ids', '' );
    update_post_meta( $new_coupon_id, 'usage_limit', '1' );
    update_post_meta( $new_coupon_id, 'expiry_date', '' );
    update_post_meta( $new_coupon_id, 'apply_before_tax', 'yes' );
    update_post_meta( $new_coupon_id, 'free_shipping', 'no' );

    echo $coupon_code;
}

?>`

for expiry_date use this
//$date should be in timestamp
update_post_meta( $new_coupon_id, 'date_expires',$date );

This is my code and I am trying to add a coupon for my online store but it's not working

add_action( 'woocommerce_before_cart', 'sh_coupons_matched' );
function sh_coupons_matched() {
global $woocommerce;
$sh_coupon = 'OnlineShop';
if ( $woocommerce->cart->has_discount( $sh_coupon ) ) return;
foreach ( $woocommerce->cart->cart_contents as $key => $values ) {
$autocoupon = array( 65 );
if( in_array( $values['product_id'], $autocoupon ) ) {
$woocommerce->cart->add_discount( $cw_coupon );
wc_print_notices();
}
}
}

I have followed this WooCommerce coupon code tutorial to implement the whole process

Hi!

If I want a coupon to be generated at the time of completing the payment and that coupon is the phone number at checkout. how can I do this?

@mikejolley, is this code still correct for WC4?

@dcx15 yikes it's 8 years old but it should work. However, I'd suggest looking into using the WC_Coupon class instead. https://docs.woocommerce.com/wc-apidocs/class-WC_Coupon.html

Thanks for confirming Mike!

For anyone else that stumbled on this gist via Google, I found this answer on SO useful https://stackoverflow.com/a/61874195. All of the other blog posts and SO answers seem to be very outdated in Google results.

How can we add something like add X quantity of any product and get Y % off?

Better using the wc_coupon instance with its save method now.

@mikejolley Does this work in 2023? I'm just starting a new store with my own designs and I can't really afford to pay for those 50$ a month plugins (not before I will actually start making some money on this :D)
Thank you for all the effort you put in this so far!
Dom