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wp-content/plugins/jetpack/modules/wordads/php/class-wordads-array-utils.php

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+<?php
+/**
+ * A utility class that provides functionality for manipulating arrays.
+ *
+ * @package automattic/jetpack
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit( 0 );
+}
+
+/**
+ * WordAds_Array_Utils Class.
+ */
+final class WordAds_Array_Utils {
+
+	/**
+	 * Converts a (potentially nested) array to a JavaScript object.
+	 *
+	 * Note: JS code strings should be prefixed with 'js:'.
+	 *
+	 * @param array $value The array to convert to a JavaScript object.
+	 * @param bool  $in_list True if we are processing an inner list (non-associative array).
+	 *
+	 * @return string String representation of the JavaScript object
+	 */
+	public static function array_to_js_object( array $value, bool $in_list = false ): string {
+		$properties = array();
+
+		foreach ( $value as $k => $v ) {
+			// Don't set property key for values from non-associative array.
+			$property_key = $in_list ? '' : "'$k': ";
+
+			if ( is_array( $v ) ) {
+				// Check for empty array.
+				if ( array() === $v ) {
+					$properties[] = "'$k': []";
+					continue;
+				}
+
+				// Check if this is a list and not an associative array.
+				if ( array_keys( $v ) === range( 0, count( $v ) - 1 ) ) {
+					// Apply recursively.
+					$properties[] = $property_key . '[ ' . self::array_to_js_object( $v, true ) . ' ]';
+				} else {
+					// Apply recursively.
+					$properties[] = $property_key . self::array_to_js_object( $v );
+				}
+			} elseif ( is_string( $v ) && strpos( $v, 'js:' ) === 0 ) {
+				// JS code. Strip the 'js:' prefix.
+				$properties[] = $property_key . substr( $v, 3 );
+			} elseif ( is_string( $v ) ) {
+				$properties[] = $property_key . "'" . addcslashes( $v, "'" ) . "'";
+			} elseif ( is_bool( $v ) ) {
+				$properties[] = $property_key . ( $v ? 'true' : 'false' );
+			} elseif ( $v === null ) {
+				$properties[] = $property_key . 'null';
+			} else {
+				$properties[] = $property_key . $v;
+			}
+		}
+
+		$output = implode( ', ', $properties );
+
+		if ( ! $in_list ) {
+			$output = '{ ' . $output . ' }';
+		}
+
+		return $output;
+	}
+}