function.php

<?php
/*
 *
 * Description: Simplified and faster WooCommerce Set Single Currency with live echenge
 * Author: banarsiamin
 * Author URI: https://www.ayatinfotech.com
 * Version: 1.0.0
 */

if ( !in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) ) {

	function akbCE_wc_admin_notice() {	


		deactivate_plugins(__FILE__);
		if ( isset( $_GET['activate'] ) ) {
			unset( $_GET['activate'] );
		}
		?>
		<div id="message" class="error">
			<p>This plugin requires <a href="https://wordpress.org/extend/plugins/woocommerce/">WooCommerce</a> plugin to be installed and active!</p> 
		</div>
		<?php

	}
	add_action( 'admin_notices', 'akbCE_wc_admin_notice' );
}
// Display Fields
add_action('woocommerce_product_options_general_product_data', 'akbce_woocommerce_product_custom_fields');
// Save Fields
add_action('woocommerce_process_product_meta', 'akbce_woocommerce_product_custom_fields_save');
function akbce_woocommerce_product_custom_fields()
{
    global $woocommerce, $post;
    $admin_url      = admin_url();
    $p_id           = get_the_ID();
    global $wpdb; 
    $wp_posts = $wpdb->prefix . "posts";
    $wp_postmeta = $wpdb->prefix . "postmeta"; 
    $_akbce_status_field    = get_post_meta(get_the_ID(),'_akbce_status_field',true);
    $_akbce_price_in_usd    = get_post_meta(get_the_ID(),'_akbce_price_in_usd',true);
    ?>
    <div  id="ayt_product_data" class="product_custom_field">
    	<p class="form-field _akbce_status_field_field ">
			<label for="_akbce_status_field">ZAR price to adjust automatically as the exchange rate</label>
			<input type="checkbox" class="short" style="width: auto;" name="_akbce_status_field" id="_akbce_status_field" value="yes" <?php echo (isset($_akbce_status_field) && ('yes'==$_akbce_status_field))?'checked':'';?>> 
		</p>
		<p class="form-field _akbce_price_in_usd_field ">
			<label for="_akbce_price_in_usd">Set USD Price to change ZAR IN front end site</label>
			<input type="number" class="short" style="" name="_akbce_price_in_usd" id="_akbce_price_in_usd" value="<?php echo $_akbce_price_in_usd;?>" placeholder="Enter Price in USD" step="any" min="0">
		</p>
	</div>
    
	<?php
    
}


function akbce_woocommerce_product_custom_fields_save($post_id)
{
    // Custom Product Text Field
    $woocommerce_akbce_status_field = $_POST['_akbce_status_field'];
    if (!empty($woocommerce_akbce_status_field))
        update_post_meta($post_id, '_akbce_status_field', esc_attr($woocommerce_akbce_status_field));
	// Custom Product Number Field
    $woocommerce_akbce_price_in_usd = $_POST['_akbce_price_in_usd'];
    if (!empty($woocommerce_akbce_price_in_usd))
        update_post_meta($post_id, '_akbce_price_in_usd', esc_attr($woocommerce_akbce_price_in_usd));

}



// add_action('wp_ajax_akbce_liveAPI_ajaxfn', 'akbce_liveAPI_ajaxfn');
// add_action('wp_ajax_nopriv_akbce_liveAPI_ajaxfn', 'akbce_liveAPI_ajaxfn');
if(isset($_GET['ayt'])){
	// echo akbce_convert_product_price_live(19893);
}
function akbce_convert_product_price_live($priceUSD,$price=''){
    $priceUSD = !empty($priceUSD)? $priceUSD:'';
    $accessKey = '*******************************';
	$baseCurrency = 'USD';
	$targetCurrency = 'ZAR';
	// Make an API request to get the latest exchange rates
	// $apiUrl = "http://data.fixer.io/api/latest?access_key=$accessKey&base=$baseCurrency&symbols=$targetCurrency";
	$apiUrl = "https://v6.exchangerate-api.com/v6/$accessKey/latest/$baseCurrency";
	$ch = curl_init($apiUrl);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	$response = curl_exec($ch);
	curl_close($ch);
	if ($response === false) {
	    die('Error fetching data from Fixer API.');
	}

	// Decode the JSON response 
	$data = json_decode($response, true);
	if(isset($_GET['ayt'])){
		echo "<PRE>";print_r($data);die;
	}
	$conversion_rates = isset($data['conversion_rates'][$targetCurrency])?$data['conversion_rates'][$targetCurrency]:'';
	if(!empty($conversion_rates) && $conversion_rates!=0){
		$zarPrice = round(($priceUSD * $conversion_rates), 0);
		// Round to the nearest multiple of 5
		// $zarPrice = round($zarPrice / 5) * 5;

		// echo strlen($zarPrice);die;
		if(strlen($zarPrice)>3){
			$newLastTwoDigits=95;
			$zarPrice = substr($zarPrice, 0, -2) . $newLastTwoDigits;
		}

	}else{
		$zarPrice = $price;
	}
    return $zarPrice;
}


// Hook to modify product price on the front end this
function akbce_modify_product_price($price, $product) {

	$product_id 	  = $product->get_id();
	$_akbce_status    = get_post_meta($product_id,'_akbce_status_field',true);
	$_akbce_usd_pr	  = get_post_meta($product_id,'_akbce_price_in_usd',true);

	if($_akbce_status=='yes' && !empty($_akbce_usd_pr) && $_akbce_usd_pr!=0){

	    // Check if it's a simple product
	    if ($product->is_type('simple')) {
	        $converted_price = akbce_convert_product_price_live($_akbce_usd_pr,$price);
	        return wc_price($converted_price);
	    }
	}else{
		return $price;
	}

}

add_filter('woocommerce_get_price_html', 'akbce_modify_product_price', 10, 2);

Woo commerce expert in currency conversion

Job Description: I need help on my south african woo commerce website. I need to add the $ price in the back end and show the ZAR price in the front end to the customer. i would also need the ZAR price to adjust automatically as the exchange rate changes and oi need it to be product specific