ravinderk / Give

includes/forms/functions.php

<?php
/**
 * Give Form Functions
 *
 * @package     GiveWP
 * @subpackage  Includes/Forms
 * @copyright   Copyright (c) 2016, GiveWP
 * @license     https://opensource.org/licenses/gpl-license GNU Public License
 * @since       1.1
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Filter: Do not show the Give shortcut button on Give Forms CPT
 *
 * @return bool
 */
function give_shortcode_button_condition() {

	global $typenow;

	if ( $typenow != 'give_forms' ) {

Found "!= '". Use Yoda Condition checks, you must

		return true;
	}

	return false;
}

add_filter( 'give_shortcode_button_condition', 'give_shortcode_button_condition' );


/**
 * Get the form ID from the form $args
 *
 * @param array $args
 *
 * @return int|false
 */
function get_form_id_from_args( $args ) {

	if ( isset( $args['form_id'] ) && $args['form_id'] != 0 ) {

Found "!= 0". Use Yoda Condition checks, you must

		return intval( $args['form_id'] );
	}

	return false;
}

/**
 * Checks whether floating labels is enabled for the form ID in $args
 *
 * @since 1.1
 *
 * @param array $args
 *
 * @return bool
 */
function give_is_float_labels_enabled( $args ) {

	$float_labels = '';

	if ( ! empty( $args['float_labels'] ) ) {
		$float_labels = $args['float_labels'];
	}

	if ( empty( $float_labels ) ) {
		$float_labels = give_get_meta( $args['form_id'], '_give_form_floating_labels', true );
	}

	if ( empty( $float_labels ) || ( 'global' === $float_labels ) ) {
		$float_labels = give_get_option( 'floatlabels', 'disabled' );
	}

	return give_is_setting_enabled( $float_labels );
}

/**
 * Determines if a user can checkout or not
 *
 * Allows themes and plugins to set donation checkout conditions
 *
 * @since 1.0
 *
 * @return bool Can user checkout?
 */
function give_can_checkout() {

	$can_checkout = true;

	return (bool) apply_filters( 'give_can_checkout', $can_checkout );
}

/**
 * Retrieve the Success page URI
 *
 * @access      public
 * @since       1.0
 *
 * @return      string
 */
function give_get_success_page_uri() {
	$give_options = give_get_settings();

	$success_page = isset( $give_options['success_page'] ) ? get_permalink( absint( $give_options['success_page'] ) ) : get_bloginfo( 'url' );

	return apply_filters( 'give_get_success_page_uri', $success_page );
}

/**
 * Determines if we're currently on the Success page.
 *
 * @since 1.0
 *
 * @return bool True if on the Success page, false otherwise.
 */
function give_is_success_page() {

This function seems to be duplicated in your project.

	$give_options = give_get_settings();

	$success_page = isset( $give_options['success_page'] ) ? is_page( $give_options['success_page'] ) : false;

	return apply_filters( 'give_is_success_page', $success_page );
}

/**
 * Send To Success Page
 *
 * Sends the user to the success page.
 *
 * @param string $query_string
 *
 * @access      public
 * @since       1.0
 * @return      void
 */
function give_send_to_success_page( $query_string = null ) {

	$redirect = give_get_success_page_uri();

	if ( $query_string ) {

The expression $query_string of type string|null is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.

		$redirect .= $query_string;
	}

	$gateway = isset( $_REQUEST['give-gateway'] ) ? $_REQUEST['give-gateway'] : '';

Detected access of super global var $_REQUEST, probably need manual inspection.

Detected usage of a non-sanitized input variable: $_REQUEST

	wp_redirect( apply_filters( 'give_success_page_redirect', $redirect, $gateway, $query_string ) );
	give_die();
}


/**
 * Send back to donation form.
 *
 * Used to redirect a user back to the donation form if there are errors present.
 *
 * @param array|string $args
 *
 * @access public
 * @since  1.0
 * @return Void
 */
function give_send_back_to_checkout( $args = array() ) {

	$url     = isset( $_POST['give-current-url'] ) ? sanitize_text_field( $_POST['give-current-url'] ) : '';

Detected access of super global var $_POST, probably need manual inspection.

	$form_id = 0;

	// Set the form_id.
	if ( isset( $_POST['give-form-id'] ) ) {
		$form_id = sanitize_text_field( $_POST['give-form-id'] );

Detected access of super global var $_POST, probably need manual inspection.

	}

	// Need a URL to continue. If none, redirect back to single form.
	if ( empty( $url ) ) {
		wp_safe_redirect( get_permalink( $form_id ) );
		give_die();
	}

	$defaults = array(
		'form-id' => (int) $form_id,
	);

	// Set the $level_id.
	if ( isset( $_POST['give-price-id'] ) ) {
		$defaults['level-id'] = sanitize_text_field( $_POST['give-price-id'] );

Detected access of super global var $_POST, probably need manual inspection.

	}

	// Check for backward compatibility.
	if ( is_string( $args ) ) {
		$args = str_replace( '?', '', $args );
	}

	$args = wp_parse_args( $args, $defaults );

	// Merge URL query with $args to maintain third-party URL parameters after redirect.
	$url_data = wp_parse_url( $url );

	// Check if an array to prevent notices before parsing.
	if ( isset( $url_data['query'] ) && ! empty( $url_data['query'] ) ) {
		parse_str( $url_data['query'], $query );

		// Precaution: don't allow any CC info.
		unset( $query['card_number'] );
		unset( $query['card_cvc'] );

	} else {
		// No $url_data so pass empty array.
		$query = array();
	}

	$new_query        = array_merge( $args, $query );
	$new_query_string = http_build_query( $new_query );

	// Assemble URL parts.
	$redirect = home_url( '/' . $url_data['path'] . '?' . $new_query_string . '#give-form-' . $form_id . '-wrap' );

	// Redirect them.
	wp_safe_redirect( apply_filters( 'give_send_back_to_checkout', $redirect, $args ) );
	give_die();

}

/**
 * Get Success Page URL
 *
 * Gets the success page URL.
 *
 * @param string $query_string
 *
 * @access      public
 * @since       1.0
 * @return      string
 */
function give_get_success_page_url( $query_string = null ) {

	$success_page = give_get_option( 'success_page', 0 );
	$success_page = get_permalink( $success_page );

	if ( $query_string ) {

The expression $query_string of type string|null is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.

		$success_page .= $query_string;
	}

	return apply_filters( 'give_success_page_url', $success_page );

}

/**
 * Get the URL of the Failed Donation Page.
 *
 * @since 1.0
 *
 * @param bool $extras Extras to append to the URL.
 *
 * @return mixed Full URL to the Failed Donation Page, if present, home page if it doesn't exist.
 */
function give_get_failed_transaction_uri( $extras = false ) {
	$give_options = give_get_settings();

	// Remove question mark.
	if ( 0 === strpos( $extras, '?' ) ) {
		$extras = substr( $extras, 1 );
	}

	$extras_args = wp_parse_args( $extras );

	// Set nonce if payment id exist in extra params.
	if ( array_key_exists( 'payment-id', $extras_args ) ) {
		$extras_args['_wpnonce'] = wp_create_nonce( "give-failed-donation-{$extras_args['payment-id']}" );
		$extras                  = http_build_query( $extras_args );
	}

	$uri = ! empty( $give_options['failure_page'] ) ?
		trailingslashit( get_permalink( $give_options['failure_page'] ) ) :
		home_url();

Functions must not contain multiple empty lines in a row; found 2 empty lines

	if ( $extras ) {
		$uri .= "?{$extras}";
	}

	return apply_filters( 'give_get_failed_transaction_uri', $uri );
}

/**
 * Determines if we're currently on the Failed Donation Page.
 *
 * @since 1.0
 * @return bool True if on the Failed Donation Page, false otherwise.
 */
function give_is_failed_transaction_page() {
	$give_options = give_get_settings();
	$ret          = isset( $give_options['failure_page'] ) ? is_page( $give_options['failure_page'] ) : false;

	return apply_filters( 'give_is_failure_page', $ret );
}

/**
 * Mark payments as Failed when returning to the Failed Donation Page
 *
 * @since  1.0
 * @since  1.8.16 Add security check
 *
 * @return bool
 */
function give_listen_for_failed_payments() {

	$failed_page = give_get_option( 'failure_page', 0 );
	$payment_id  = ! empty( $_GET['payment-id'] ) ? absint( $_GET['payment-id'] ) : 0;

Detected access of super global var $_GET, probably need manual inspection.

	$nonce       = ! empty( $_GET['_wpnonce'] ) ? give_clean( $_GET['_wpnonce'] ) : false;

Detected access of super global var $_GET, probably need manual inspection.

Detected usage of a non-sanitized input variable: $_GET

	// Bailout.
	if ( ! $failed_page || ! is_page( $failed_page ) || ! $payment_id || ! $nonce ) {
		return false;
	}

	// Security check.
	if ( ! wp_verify_nonce( $nonce, "give-failed-donation-{$payment_id}" ) ) {
		wp_die( __( 'Nonce verification failed.', 'give' ), __( 'Error', 'give' ) );
	}

	// Set payment status to failure
	give_update_payment_status( $payment_id, 'failed' );
}

add_action( 'template_redirect', 'give_listen_for_failed_payments' );

/**
 * Retrieve the Donation History page URI
 *
 * @access      public
 * @since       1.7
 *
 * @return      string
 */
function give_get_history_page_uri() {
	$give_options = give_get_settings();

	$history_page = isset( $give_options['history_page'] ) ? get_permalink( absint( $give_options['history_page'] ) ) : get_bloginfo( 'url' );

	return apply_filters( 'give_get_history_page_uri', $history_page );
}

/**
 * Determines if we're currently on the History page.
 *
 * @since 1.0
 *
 * @return bool True if on the History page, false otherwise.
 */
function give_is_history_page() {

This function seems to be duplicated in your project.

	$give_options = give_get_settings();

	$history_page = isset( $give_options['history_page'] ) ? absint( $give_options['history_page'] ) : 0;

	return apply_filters( 'give_is_history_page', is_page( $history_page ) );
}

/**
 * Check if a field is required
 *
 * @param string $field
 * @param int    $form_id
 *
 * @access      public
 * @since       1.0
 * @return      bool
 */
function give_field_is_required( $field, $form_id ) {

	$required_fields = give_get_required_fields( $form_id );

	return array_key_exists( $field, $required_fields );
}

/**
 * Record Donation In Log
 *
 * Stores log information for a donation.
 *
 * @since 1.0
 *
 * @param int         $give_form_id  Give Form ID.
 * @param int         $payment_id    Payment ID.
 * @param bool|int    $price_id      Price ID, if any.
 * @param string|null $donation_date The date of the donation.
 *
 * @return void
 */
function give_record_donation_in_log( $give_form_id = 0, $payment_id, $price_id = false, $donation_date = null ) {
	$log_data = array(
		'log_parent'   => $payment_id,
		'log_type'     => 'sale',
		'log_date'     => isset( $donation_date ) ? $donation_date : null,
		'log_date_gmt' => isset( $donation_date ) ? $donation_date : null,
	);

	$log_meta = array(
		'form_id'  => $give_form_id,
		'price_id' => (int) $price_id,
	);

	Give()->logs->insert_log( $log_data, $log_meta );
}


/**
 * Increases the donation total count of a donation form.
 *
 * @since 1.0
 *
 * @param int $form_id  Give Form ID
 * @param int $quantity Quantity to increase donation count by
 *
 * @return bool|int
 */
function give_increase_donation_count( $form_id = 0, $quantity = 1 ) {
	$quantity = (int) $quantity;

	/** @var \Give_Donate_Form $form */
	$form = new Give_Donate_Form( $form_id );

	return $form->increase_sales( $quantity );
}

/**
 * Update the goal progress count of a donation form.
 *
 * @since 2.4.0
 *
 * @param int $form_id Give Form ID
 *
 * @return void
 */
function give_update_goal_progress( $form_id = 0 ) {

	//Get goal option meta key
	$is_goal_enabled = give_is_setting_enabled( give_get_meta( $form_id, '_give_goal_option', true, 'disabled' ) );

'disabled' is of type string, but the function expects a boolean.

	// Check, if the form goal is enabled.
	if ( $is_goal_enabled ) {
		$goal_stats               = give_goal_progress_stats( $form_id );
		$form_goal_progress_value = ! empty( $goal_stats['progress'] ) ? $goal_stats['progress'] : 0;
	} else {
		$form_goal_progress_value = -1;
	}

	give_update_meta( $form_id, '_give_form_goal_progress', $form_goal_progress_value );
}

/**
 * Decreases the sale count of a form. Primarily for when a donation is refunded.
 *
 * @since 1.0
 *
 * @param int $form_id  Give Form ID
 * @param int $quantity Quantity to increase donation count by
 *
 * @return bool|int
 */
function give_decrease_donation_count( $form_id = 0, $quantity = 1 ) {
	$quantity = (int) $quantity;

	/** @var \Give_Donate_Form $form */
	$form = new Give_Donate_Form( $form_id );

	return $form->decrease_sales( $quantity );
}

/**
 * Increases the total earnings of a form.
 *
 * @since 1.0
 *
 * @since 2.1 Pass donation id.
 *
 * @param int $give_form_id Give Form ID
 * @param int $amount       Earnings
 * @param int $payment_id   Donation ID.
 *
 * @return bool|int
 */
function give_increase_earnings( $give_form_id = 0, $amount, $payment_id = 0 ) {
	/** @var \Give_Donate_Form $form */
	$form = new Give_Donate_Form( $give_form_id );

	return $form->increase_earnings( $amount, $payment_id );
}

/**
 * Decreases the total earnings of a form.
 *
 * Primarily for when a donation is refunded.
 *
 * @since 1.0
 *
 * @since 2.1 Pass donation id.
 *
 * @param int $form_id    Give Form ID
 * @param int $amount     Earnings
 * @param int $payment_id Donation ID.
 *
 * @return bool|int
 */
function give_decrease_form_earnings( $form_id = 0, $amount, $payment_id = 0 ) {
	/** @var \Give_Donate_Form $form */
	$form = new Give_Donate_Form( $form_id );

	return $form->decrease_earnings( $amount, $payment_id );
}


/**
 * Returns the total earnings for a form.
 *
 * @since 1.0
 *
 * @param int $form_id Give Form ID
 *
 * @return int $earnings Earnings for a certain form
 */
function give_get_form_earnings_stats( $form_id = 0 ) {
	$give_form = new Give_Donate_Form( $form_id );

	/**
	 * Filter the form earnings
	 *
	 * @since 1.8.17
	 */
	return apply_filters( 'give_get_form_earnings_stats', $give_form->earnings, $form_id, $give_form );
}


/**
 * Return the sales number for a form.
 *
 * @since 1.0
 *
 * @param int $give_form_id Give Form ID
 *
 * @return int $sales Amount of sales for a certain form
 */
function give_get_form_sales_stats( $give_form_id = 0 ) {
	$give_form = new Give_Donate_Form( $give_form_id );

	return $give_form->sales;
}


/**
 * Retrieves the average monthly sales for a specific donation form
 *
 * @since 1.0
 *
 * @param int $form_id Form ID
 *
 * @return float $sales Average monthly sales
 */
function give_get_average_monthly_form_sales( $form_id = 0 ) {

This function seems to be duplicated in your project.

	$sales        = give_get_form_sales_stats( $form_id );
	$release_date = get_post_field( 'post_date', $form_id );

	$diff = abs( current_time( 'timestamp' ) - strtotime( $release_date ) );

	$months = floor( $diff / ( 30 * 60 * 60 * 24 ) ); // Number of months since publication

	if ( $months > 0 ) {
		$sales = ( $sales / $months );
	}

	return $sales;
}


/**
 * Retrieves the average monthly earnings for a specific form
 *
 * @since 1.0
 *
 * @param int $form_id Form ID
 *
 * @return float $earnings Average monthly earnings
 */
function give_get_average_monthly_form_earnings( $form_id = 0 ) {

This function seems to be duplicated in your project.

	$earnings     = give_get_form_earnings_stats( $form_id );
	$release_date = get_post_field( 'post_date', $form_id );

	$diff = abs( current_time( 'timestamp' ) - strtotime( $release_date ) );

	$months = floor( $diff / ( 30 * 60 * 60 * 24 ) ); // Number of months since publication

	if ( $months > 0 ) {
		$earnings = ( $earnings / $months );
	}

	return $earnings < 0 ? 0 : $earnings;
}


/**
 * Get Price Option Name (Text)
 *
 * Retrieves the name of a variable price option.
 *
 * @since       1.0
 *
 * @param int  $form_id      ID of the donation form.
 * @param int  $price_id     ID of the price option.
 * @param int  $payment_id   payment ID for use in filters ( optional ).
 * @param bool $use_fallback Outputs the level amount if no level text is provided.
 *
 * @return string $price_name Name of the price option
 */
function give_get_price_option_name( $form_id = 0, $price_id = 0, $payment_id = 0, $use_fallback = true ) {

	$prices     = give_get_variable_prices( $form_id );
	$price_name = '';

	if ( false === $prices ) {
		return $price_name;
	}

	foreach ( $prices as $price ) {

		if ( intval( $price['_give_id']['level_id'] ) === intval( $price_id ) ) {

			$price_text     = isset( $price['_give_text'] ) ? $price['_give_text'] : '';
			$price_fallback = $use_fallback ?
				give_currency_filter(
					give_format_amount(
						$price['_give_amount'],
						array( 'sanitize' => false )
					),
					array( 'decode_currency' => true )
				) : '';
			$price_name     = ! empty( $price_text ) ? $price_text : $price_fallback;

		}
	}

	return apply_filters( 'give_get_price_option_name', $price_name, $form_id, $payment_id, $price_id );
}


/**
 * Retrieves a price from from low to high of a variable priced form
 *
 * @since 1.0
 *
 * @param int  $form_id   ID of the form
 * @param bool $formatted Flag to decide which type of price range string return
 *
 * @return string $range A fully formatted price range
 */
function give_price_range( $form_id = 0, $formatted = true ) {
	$low        = give_get_lowest_price_option( $form_id );
	$high       = give_get_highest_price_option( $form_id );
	$order_type = ! empty( $_REQUEST['order'] ) ? $_REQUEST['order'] : 'asc';

Detected access of super global var $_REQUEST, probably need manual inspection.

Detected usage of a non-sanitized input variable: $_REQUEST

	$range = sprintf(
		'<span class="give_price_range_%1$s">%2$s</span><span class="give_price_range_sep">&nbsp;&ndash;&nbsp;</span><span class="give_price_range_%3$s">%4$s</span>',
		'asc' === $order_type ? 'low' : 'high',
		'asc' === $order_type ? give_currency_filter( give_format_amount( $low, array( 'sanitize' => false ) ) ) : give_currency_filter( give_format_amount( $high, array( 'sanitize' => false ) ) ),
		'asc' === $order_type ? 'high' : 'low',
		'asc' === $order_type ? give_currency_filter( give_format_amount( $high, array( 'sanitize' => false ) ) ) : give_currency_filter( give_format_amount( $low, array( 'sanitize' => false ) ) )

There should be no empty lines in a multi-line function call.

	);

	if ( ! $formatted ) {
		$range = wp_strip_all_tags( $range );
	}

	return apply_filters( 'give_price_range', $range, $form_id, $low, $high );
}


/**
 * Get Lowest Price ID
 *
 * Retrieves the ID for the cheapest price option of a variable donation form
 *
 * @since 1.5
 *
 * @param int $form_id ID of the donation
 *
 * @return int ID of the lowest price
 */
function give_get_lowest_price_id( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		$form_id = get_the_ID();
	}

	if ( ! give_has_variable_prices( $form_id ) ) {
		return give_get_form_price( $form_id );
	}

	$prices = give_get_variable_prices( $form_id );

	$min = $min_id = 0;

	if ( ! empty( $prices ) ) {

		foreach ( $prices as $key => $price ) {

			if ( empty( $price['_give_amount'] ) ) {
				continue;
			}

			if ( ! isset( $min ) ) {
				$min = $price['_give_amount'];
			} else {
				$min = min( $min, $price['_give_amount'] );
			}

			if ( $price['_give_amount'] == $min ) {
				$min_id = $price['_give_id']['level_id'];
			}
		}
	}

	return (int) $min_id;
}

/**
 * Retrieves cheapest price option of a variable priced form
 *
 * @since 1.0
 *
 * @param int $form_id ID of the form
 *
 * @return float Amount of the lowest price
 */
function give_get_lowest_price_option( $form_id = 0 ) {

This function seems to be duplicated in your project.

	if ( empty( $form_id ) ) {
		$form_id = get_the_ID();
	}

	if ( ! give_has_variable_prices( $form_id ) ) {
		return give_get_form_price( $form_id );
	}

	if ( ! ( $low = get_post_meta( $form_id, '_give_levels_minimum_amount', true ) ) ) {
		// Backward compatibility.
		$prices = wp_list_pluck( give_get_variable_prices( $form_id ), '_give_amount' );
		$low    = ! empty( $prices ) ? min( $prices ) : 0;
	}

	return give_maybe_sanitize_amount( $low );
}

/**
 * Retrieves most expensive price option of a variable priced form
 *
 * @since 1.0
 *
 * @param int $form_id ID of the form
 *
 * @return float Amount of the highest price
 */
function give_get_highest_price_option( $form_id = 0 ) {

This function seems to be duplicated in your project.

	if ( empty( $form_id ) ) {
		$form_id = get_the_ID();
	}

	if ( ! give_has_variable_prices( $form_id ) ) {
		return give_get_form_price( $form_id );
	}

	if ( ! ( $high = get_post_meta( $form_id, '_give_levels_maximum_amount', true ) ) ) {
		// Backward compatibility.
		$prices = wp_list_pluck( give_get_variable_prices( $form_id ), '_give_amount' );
		$high   = ! empty( $prices ) ? max( $prices ) : 0;
	}

	return give_maybe_sanitize_amount( $high );
}

/**
 * Returns the price of a form, but only for non-variable priced forms.
 *
 * @since 1.0
 *
 * @param int $form_id ID number of the form to retrieve a price for
 *
 * @return mixed string|int Price of the form
 */
function give_get_form_price( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		return false;
	}

	$form = new Give_Donate_Form( $form_id );

	return $form->__get( 'price' );
}

/**
 * Returns the minimum price amount of a form, only enforced for the custom amount input.
 *
 * @since 1.3.6
 *
 * @param int $form_id ID number of the form to retrieve the minimum price for
 *
 * @return mixed string|int Minimum price of the form
 */
function give_get_form_minimum_price( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		return false;
	}

	$form = new Give_Donate_Form( $form_id );

	return $form->get_minimum_price();

}

/**
 * Return the maximum price amount of form.
 *
 * @since 2.1
 *
 * @param int $form_id Donate Form ID
 *
 * @return bool|float
 */
function give_get_form_maximum_price( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		return false;
	}

	$form = new Give_Donate_Form( $form_id );

	return $form->get_maximum_price();
}

/**
 * Displays a formatted price for a donation form
 *
 * @since 1.0
 *
 * @param int      $form_id  ID of the form price to show
 * @param bool     $echo     Whether to echo or return the results
 * @param bool|int $price_id Optional price id for variable pricing
 *
 * @return int $formatted_price
 */
function give_price( $form_id = 0, $echo = true, $price_id = false ) {
	$price = 0;

	if ( empty( $form_id ) ) {
		$form_id = get_the_ID();
	}

	if ( give_has_variable_prices( $form_id ) ) {

		$prices = give_get_variable_prices( $form_id );

		if ( false !== $price_id ) {

			// loop through multi-prices to see which is default
			foreach ( $prices as $price ) {

The expression $prices of type false|array is not guaranteed to be traversable. How about adding an additional type check?

				// this is the default price
				if ( isset( $price['_give_default'] ) && $price['_give_default'] === 'default' ) {

Found "=== '". Use Yoda Condition checks, you must

					$price = (float) $price['_give_amount'];
				};
			}
		} else {

			$price = give_get_lowest_price_option( $form_id );
		}
	} else {

		$price = give_get_form_price( $form_id );
	}

	$price           = apply_filters( 'give_form_price', give_maybe_sanitize_amount( $price ), $form_id );
	$formatted_price = '<span class="give_price" id="give_price_' . $form_id . '">' . $price . '</span>';
	$formatted_price = apply_filters( 'give_form_price_after_html', $formatted_price, $form_id, $price );

	if ( $echo ) {
		echo $formatted_price;

Expected next thing to be a escaping function, not '$formatted_price'

	} else {
		return $formatted_price;
	}
}

add_filter( 'give_form_price', 'give_format_amount', 10 );
add_filter( 'give_form_price', 'give_currency_filter', 20 );


/**
 * Retrieves the amount of a variable price option
 *
 * @since 1.0
 *
 * @param int $form_id  ID of the form
 * @param int $price_id ID of the price option
 *
 * @return float $amount Amount of the price option
 */
function give_get_price_option_amount( $form_id = 0, $price_id = 0 ) {
	$prices = give_get_variable_prices( $form_id );

	$amount = 0.00;

	foreach ( $prices as $price ) {

The expression $prices of type false|array is not guaranteed to be traversable. How about adding an additional type check?

This code seems to be duplicated across your project.

		if ( isset( $price['_give_id']['level_id'] ) && $price['_give_id']['level_id'] == $price_id ) {
			$amount = isset( $price['_give_amount'] ) ? $price['_give_amount'] : 0.00;
			break;
		};
	}

	return apply_filters( 'give_get_price_option_amount', give_maybe_sanitize_amount( $amount ), $form_id, $price_id );
}

/**
 * Returns the goal of a form
 *
 * @since 1.0
 *
 * @param int $form_id ID number of the form to retrieve a goal for
 *
 * @return mixed string|int Goal of the form
 */
function give_get_form_goal( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		return false;
	}

	$form = new Give_Donate_Form( $form_id );

	return $form->goal;

}

/**
 * Returns the goal format of a form
 *
 * @since 2.0
 *
 * @param int $form_id ID number of the form to retrieve a goal for
 *
 * @return mixed string|int Goal of the form
 */
function give_get_form_goal_format( $form_id = 0 ) {

	if ( empty( $form_id ) ) {
		return false;
	}

	return give_get_meta( $form_id, '_give_goal_format', true );

}

/**
 * Display/Return a formatted goal for a donation form
 *
 * @since 1.0
 *
 * @param int  $form_id ID of the form price to show
 * @param bool $echo    Whether to echo or return the results
 *
 * @return string $formatted_goal
 */
function give_goal( $form_id = 0, $echo = true ) {

	if ( empty( $form_id ) ) {
		$form_id = get_the_ID();
	}

	$goal        = give_get_form_goal( $form_id );
	$goal_format = give_get_form_goal_format( $form_id );

	if ( 'donation' === $goal_format ) {
		$goal = "{$goal} donations";
	} else {
		$goal = apply_filters( 'give_form_goal', give_maybe_sanitize_amount( $goal ), $form_id );
	}

	$formatted_goal = sprintf(
		'<span class="give_price" id="give_price_%1$s">%2$s</span>',
		$form_id,
		$goal
	);
	$formatted_goal = apply_filters( 'give_form_price_after_html', $formatted_goal, $form_id, $goal );

	if ( $echo ) {
		echo $formatted_goal;

Expected next thing to be a escaping function, not '$formatted_goal'

	} else {
		return $formatted_goal;
	}
}

add_filter( 'give_form_goal', 'give_format_amount', 10 );
add_filter( 'give_form_goal', 'give_currency_filter', 20 );


/**
 * Checks if users can only donate when logged in
 *
 * @since  1.0
 *
 * @param  int $form_id Give form ID
 *
 * @return bool  $ret Whether or not the logged_in_only setting is set
 */
function give_logged_in_only( $form_id ) {

This function seems to be duplicated in your project.

	// If _give_logged_in_only is set to enable then guest can donate from that specific form.
	// Otherwise it is member only donation form.
	$val = give_get_meta( $form_id, '_give_logged_in_only', true );
	$val = ! empty( $val ) ? $val : 'enabled';

	$ret = ! give_is_setting_enabled( $val );

	return (bool) apply_filters( 'give_logged_in_only', $ret, $form_id );
}


/**
 * Checks the option for the "Register / Login Option"
 *
 * @since 1.4.1
 *
 * @param int $form_id
 *
 * @return string
 */
function give_show_login_register_option( $form_id ) {

	$show_register_form = give_get_meta( $form_id, '_give_show_register_form', true );

	return apply_filters( 'give_show_register_form', $show_register_form, $form_id );

}


/**
 * Get pre fill form field values.
 *
 * Note: this function will extract form field values from give_purchase session data.
 *
 * @since  1.8
 *
 * @param  int $form_id Form ID.
 *
 * @return array
 */
function _give_get_prefill_form_field_values( $form_id ) {
	$logged_in_donor_info = array();

	if ( is_user_logged_in() ) :
		$donor_data    = get_userdata( get_current_user_id() );
		$donor         = new Give_Donor( get_current_user_id(), true );
		$donor_address = $donor->get_donor_address();
		$company_name  = $donor->get_company_name();

		$logged_in_donor_info = array(
			// First name.
			'give_first'      => $donor_data->first_name,

			// Last name.
			'give_last'       => $donor_data->last_name,

			// Title Prefix.
			'give_title'      => $donor->get_meta( '_give_donor_title_prefix', true ),

			// Company name.
			'company_name'    => $company_name,

			// Email.
			'give_email'      => $donor_data->user_email,

			// Street address 1.
			'card_address'    => $donor_address['line1'],

			// Street address 2.
			'card_address_2'  => $donor_address['line2'],

			// Country.
			'billing_country' => $donor_address['country'],

			// State.
			'card_state'      => $donor_address['state'],

			// City.
			'card_city'       => $donor_address['city'],

			// Zipcode
			'card_zip'        => $donor_address['zip'],
		);
	endif;

	// Bailout: Auto fill form field values only form form which donor is donating.
	if (
		empty( $_GET['form-id'] )

Detected access of super global var $_GET, probably need manual inspection.

		|| ! $form_id
		|| ( $form_id !== absint( $_GET['form-id'] ) )

Detected access of super global var $_GET, probably need manual inspection.

	) {
		return $logged_in_donor_info;
	}

	// Get purchase data.
	$give_purchase_data = Give()->session->get( 'give_purchase' );

	// Get donor info from form data.
	$give_donor_info_in_session = empty( $give_purchase_data['post_data'] )
		? array()
		: $give_purchase_data['post_data'];

	// Output.
	return wp_parse_args( $give_donor_info_in_session, $logged_in_donor_info );
}

/**
 * Get donor count of form
 *
 * @since 2.1.0
 *
 * @param int   $form_id
 * @param array $args
 *
 * @return int
 */
function give_get_form_donor_count( $form_id, $args = array() ) {
	global $wpdb;

	$cache_key   = Give_Cache::get_key( "form_donor_count_{$form_id}", $args, false );
	$donor_count = absint( Give_Cache::get_db_query( $cache_key ) );

	if ( $form_id && ! $donor_count ) {
		// Set arguments.
		$args = wp_parse_args(
			$args,
			array(
				'unique' => true,
			)
		);

		$donation_meta_table  = Give()->payment_meta->table_name;
		$donation_id_col_name = Give()->payment_meta->get_meta_type() . '_id';

		$distinct = $args['unique'] ? 'DISTINCT meta_value' : 'meta_value';

		$query = $wpdb->prepare(
			"
			SELECT COUNT({$distinct})
			FROM {$donation_meta_table}
			WHERE meta_key=%s
			AND {$donation_id_col_name} IN(
				SELECT {$donation_id_col_name}
				FROM {$donation_meta_table} as pm
				INNER JOIN {$wpdb->posts} as p
				ON pm.{$donation_id_col_name}=p.ID
				WHERE pm.meta_key=%s
				AND pm.meta_value=%s
				AND p.post_status=%s
			)
			",
			'_give_payment_donor_id',
			'_give_payment_form_id',
			$form_id,
			'publish'
		);

		$donor_count = absint( $wpdb->get_var( $query ) );

Usage of a direct database call is discouraged.

Usage of a direct database call without caching is prohibited. Use wp_cache_get / wp_cache_set.

	}

Functions must not contain multiple empty lines in a row; found 2 empty lines

	/**
	 * Filter the donor count
	 *
	 * @since 2.1.0
	 */
	$donor_count = apply_filters( 'give_get_form_donor_count', $donor_count, $form_id, $args );

	return $donor_count;
}

/**
 * Verify the form status.
 *
 * @param int $form_id Donation Form ID.
 *
 * @since 2.1
 *
 * @return void
 */
function give_set_form_closed_status( $form_id ) {

	// Bailout.
	if ( empty( $form_id ) ) {
		return;
	}

	$open_form       = false;
	$is_goal_enabled = give_is_setting_enabled( give_get_meta( $form_id, '_give_goal_option', true, 'disabled' ) );

'disabled' is of type string, but the function expects a boolean.

	// Proceed, if the form goal is enabled.
	if ( $is_goal_enabled ) {

		$close_form_when_goal_achieved = give_is_setting_enabled( give_get_meta( $form_id, '_give_close_form_when_goal_achieved', true, 'disabled' ) );

'disabled' is of type string, but the function expects a boolean.

		// Proceed, if close form when goal achieved option is enabled.
		if ( $close_form_when_goal_achieved ) {

			$form                = new Give_Donate_Form( $form_id );
			$goal_progress_stats = give_goal_progress_stats( $form );

			// Verify whether the form is closed or not after processing data.
			$closed = $goal_progress_stats['raw_goal'] <= $goal_progress_stats['raw_actual'];

			// Update form meta if verified that the form is closed.
			if ( $closed ) {
				give_update_meta( $form_id, '_give_form_status', 'closed' );
			} else {
				$open_form = true;
			}
		} else {
			$open_form = true;
		}
	} else {
		$open_form = true;
	}

	// If $open_form is true, then update form status to open.
	if ( $open_form ) {
		give_update_meta( $form_id, '_give_form_status', 'open' );
	}
}

/**
 * Show Form Goal Stats in Admin ( Listing and Detail page )
 *
 * @param int $form_id Form ID.
 *
 * @since 2.1.0
 *
 * @return string
 */
function give_admin_form_goal_stats( $form_id ) {

	$html             = '';
	$goal_stats       = give_goal_progress_stats( $form_id );
	$percent_complete = round( ( $goal_stats['raw_actual'] / $goal_stats['raw_goal'] ), 3 ) * 100;

	$html .= sprintf(
		'<div class="give-admin-progress-bar" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="%1$s">
<span style="width:%1$s%%;"></span>
</div>',
		esc_attr( $goal_stats['progress'] )
	);

	$html .= sprintf(
		( 'percentage' !== $goal_stats['format'] ) ?
			'<div class="give-goal-text"><span>%1$s</span> %2$s <a href="%3$s">%4$s</a> %5$s ' :
			'<div class="give-goal-text"><a href="%3$s">%1$s </a>',
		( 'percentage' !== $goal_stats['format'] ) ? $goal_stats['actual'] : $percent_complete . '%',
		( 'percentage' !== $goal_stats['format'] ) ? __( 'of', 'give' ) : '',
		esc_url( admin_url( "post.php?post={$form_id}&action=edit&give_tab=donation_goal_options" ) ),
		$goal_stats['goal'],
		( 'donors' === $goal_stats['format'] ? __( 'Donors', 'give' ) : ( 'donation' === $goal_stats['format'] ? __( 'Donations', 'give' ) : '' ) )
	);

	if ( $goal_stats['raw_actual'] >= $goal_stats['raw_goal'] ) {
		$html .= sprintf( '<span class="give-admin-goal-achieved"><span class="dashicons dashicons-star-filled"></span> %s</span>', __( 'Goal achieved', 'give' ) );
	}

	$html .= '</div>';

Functions must not contain multiple empty lines in a row; found 2 empty lines

	return $html;
}

/**
 * Get the default donation form's level id.
 *
 * @since 2.2.0
 *
 * @param integer $form_id Donation Form ID.
 *
 * @return null | array
 */
function give_form_get_default_level( $form_id ) {
	$default_level = null;

	// If donation form has variable prices.
	if ( give_has_variable_prices( $form_id ) ) {
		/**
		 * Filter the variable pricing
		 *
		 *
		 * @since      1.0
		 * @deprecated 2.2 Use give_get_donation_levels filter instead of give_form_variable_prices.
		 *                 Check Give_Donate_Form::get_prices().
		 *
		 * @param array $prices Array of variable prices.
		 * @param int   $form   Form ID.
		 */
		$prices = apply_filters( 'give_form_variable_prices', give_get_variable_prices( $form_id ), $form_id );

		// Go through each of the level and get the default level id.
		foreach ( $prices as $level ) {
			if (

Found "=== '". Use Yoda Condition checks, you must

				isset( $level['_give_default'] )
				&& $level['_give_default'] === 'default'
			) {
				$default_level = $level;
			}
		}
	}

	/**
	 * Filter the default donation level id.
	 *
	 * @since 2.2.0
	 *
	 * @param array   $default_level Default level price data.
	 * @param integer $form_id       Donation form ID.
	 */
	return apply_filters( 'give_form_get_default_level', $default_level, $form_id );
}

/**
 * Get the default level id.
 *
 * @since 2.2.0
 *
 * @param array|integer   $price_or_level_id Price level data.
 * @param boolean|integer $form_id           Donation Form ID.
 *
 * @return boolean
 */
function give_is_default_level_id( $price_or_level_id, $form_id = 0 ) {
	$is_default = false;

	if (
		! empty( $form_id )
		&& is_numeric( $price_or_level_id )
	) {
		// Get default level id.
		$form_price_data = give_form_get_default_level( $form_id );

Are you sure the assignment to $form_price_data is correct as give_form_get_default_level($form_id) (which targets give_form_get_default_level()) seems to always return null.

		$is_default = ! is_null( $form_price_data ) && ( $price_or_level_id === absint( $form_price_data['_give_id']['level_id'] ) );
	}

	$is_default = false === $is_default && is_array( $price_or_level_id ) ?
		( isset( $price_or_level_id['_give_default'] ) && $price_or_level_id['_give_default'] === 'default' )
		: $is_default;

	/**
	 * Allow developers to modify the default level id checks.
	 *
	 * @since 2.2.0
	 *
	 * @param bool          $is_default        True if it is default price level id otherwise false.
	 * @param array|integer $price_or_level_id Price Data.
	 */
	return apply_filters( 'give_is_default_level_id', $is_default, $price_or_level_id );
}


/**
 * Get Name Title Prefixes (a.k.a. Salutation) value.
 *
 * @param int $form_id Donation Form ID.
 *
 * @since 2.2.0
 *
 * @return mixed
 */
function give_get_name_title_prefixes( $form_id = 0 ) {

	$name_title_prefix = give_is_name_title_prefix_enabled( $form_id );
	$title_prefixes    = give_get_option( 'title_prefixes', give_get_default_title_prefixes() );

give_get_default_title_prefixes() is of type array, but the function expects a string|boolean.

	// If form id exists, then fetch form specific title prefixes.
	if ( intval( $form_id ) > 0 && $name_title_prefix ) {

		$form_title_prefix = give_get_meta( $form_id, '_give_name_title_prefix', true );
		if ( 'global' !== $form_title_prefix ) {
			$form_title_prefixes = give_get_meta( $form_id, '_give_title_prefixes', true, give_get_default_title_prefixes() );

give_get_default_title_prefixes() is of type array, but the function expects a boolean.

			// Check whether the form based title prefixes exists or not.
			if ( is_array( $form_title_prefixes ) && count( $form_title_prefixes ) > 0 ) {
				$title_prefixes = $form_title_prefixes;
			}
		}
	}

	return $title_prefixes;
}

/**
 * Check whether the name title prefix is enabled or not.
 *
 * @param int    $form_id Donation Form ID.
 * @param string $status  Status to set status based on option value.
 *
 * @since 2.2.0
 *
 * @return bool
 */
function give_is_name_title_prefix_enabled( $form_id = 0, $status = '' ) {
	if ( empty( $status ) ) {
		$status = array( 'required', 'optional' );
	} else {
		$status = array( $status );
	}

	$title_prefix_status = give_is_setting_enabled( give_get_option( 'name_title_prefix' ), $status );

$status is of type array<integer,string,{"0":"string"}>, but the function expects a string|null.

	if ( intval( $form_id ) > 0 ) {
		$form_title_prefix = give_get_meta( $form_id, '_give_name_title_prefix', true );

		if ( 'disabled' === $form_title_prefix ) {
			$title_prefix_status = false;
		} elseif ( in_array( $form_title_prefix, $status, true ) ) {
			$title_prefix_status = give_is_setting_enabled( $form_title_prefix, $status );

$status is of type array<integer,string,{"0":"string"}>, but the function expects a string|null.

		}
	}

	return $title_prefix_status;

}

/**
 * Get Donor Name with Title Prefix
 *
 * @param int|Give_Donor $donor Donor Information.
 *
 * @since 2.2.0
 *
 * @return object
 */
function give_get_name_with_title_prefixes( $donor ) {

	// Prepare Give_Donor object, if $donor is numeric.
	if ( is_numeric( $donor ) ) {
		$donor = new Give_Donor( $donor );
	}

	$title_prefix = Give()->donor_meta->get_meta( $donor->id, '_give_donor_title_prefix', true );

	// Update Donor name, if non empty title prefix.
	if ( ! empty( $title_prefix ) ) {
		$donor->name = give_get_donor_name_with_title_prefixes( $title_prefix, $donor->name );
	}

	return $donor;
}

/**
 * This function will generate donor name with title prefix if it is required.
 *
 * @param string $title_prefix Title Prefix of Donor
 * @param string $name         Donor Name.
 *
 * @since 2.2.0
 *
 * @return string
 */
function give_get_donor_name_with_title_prefixes( $title_prefix, $name ) {

	$donor_name = $name;

	if ( ! empty( $title_prefix ) && ! empty( $name ) ) {
		$donor_name = "{$title_prefix} {$name}";
	}

	return trim( $donor_name );
}

/**
 * This function will fetch the default list of title prefixes.
 *
 * @since 2.2.0
 *
 * @return array
 */
function give_get_default_title_prefixes() {
	/**
	 * Filter the data
	 * Set default title prefixes.
	 *
	 * @since 2.2.0
	 */
	return apply_filters(
		'give_get_default_title_prefixes',
		array(
			'Mr.'  => __( 'Mr.', 'give' ),
			'Mrs.' => __( 'Mrs.', 'give' ),
			'Ms.'  => __( 'Ms.', 'give' ),
		)
	);
}

/**
 * This function will check whether the name title prefix field is required or not.
 *
 * @param int $form_id Donation Form ID.
 *
 * @since 2.2.0
 *
 * @return bool
 */
function give_is_name_title_prefix_required( $form_id = 0 ) {

	// Bail out, if name title prefix is not enabled.
	if ( ! give_is_name_title_prefix_enabled( $form_id ) ) {
		return false;
	}

	$status      = array( 'optional' );
	$is_optional = give_is_setting_enabled( give_get_option( 'name_title_prefix' ), $status );

$status is of type array<integer,string,{"0":"string"}>, but the function expects a string|null.

	if ( intval( $form_id ) > 0 ) {
		$form_title_prefix = give_get_meta( $form_id, '_give_name_title_prefix', true );

		if ( 'required' === $form_title_prefix ) {
			$is_optional = false;
		} elseif ( 'optional' === $form_title_prefix ) {
			$is_optional = true;
		}
	}

	return ( ! $is_optional );
}

/**
 * Deletes form meta when the form is permanently deleted from the trash.
 *
 * @since 2.3.0
 *
 * @param integer $id Donation Form ID which needs to be deleted.
 *
 * @return void
 */
function give_handle_form_meta_on_delete( $id ) {

	global $wpdb;

	$form     = get_post( $id );
	$get_data = give_clean( $_GET );

Detected access of super global var $_GET, probably need manual inspection.

	if (
		'give_forms' === $form->post_type &&
		'trash' === $form->post_status &&
		(
			( isset( $get_data['action'] ) && 'delete' === $get_data['action'] ) ||
			! empty( $get_data['delete_all'] )
		)
	) {
		$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->formmeta} WHERE form_id = '%d'", $form->ID ) );

Usage of a direct database call is discouraged.

Usage of a direct database call without caching is prohibited. Use wp_cache_get / wp_cache_set.

	}
}

add_action( 'before_delete_post', 'give_handle_form_meta_on_delete', 10, 1 );


/**
 * Get list of default param of form shrtcode.
 *
 * @since 2.4.1
 * @return array
 */
function give_get_default_form_shortcode_args() {
	$default = array(
		'id'                    => '',
		'show_title'            => true,
		'show_goal'             => true,
		'show_content'          => '',
		'float_labels'          => '',
		'display_style'         => '',
		'continue_button_title' => '',
	);

	/**
	 * Fire the filter
	 */
	$default = apply_filters( 'give_get_default_form_shortcode_args', $default );

	return $default;
}