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wp-content/plugins/polylang-pro/vendor/wpsyntex/polylang/include/db-tools.php

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+<?php
+/**
+ * @package Polylang
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Small set of tools to work with the database.
+ *
+ * @since 3.2
+ */
+class PLL_Db_Tools {
+
+	/**
+	 * Changes an array of values into a comma separated list, ready to be used in a `IN ()` clause.
+	 * Only string and integers and supported for now.
+	 *
+	 * @since 3.2
+	 *
+	 * @param (int|string)[] $values An array of values.
+	 * @return string A comma separated list of values.
+	 */
+	public static function prepare_values_list( $values ) {
+		$values = array_map( array( __CLASS__, 'prepare_value' ), (array) $values );
+
+		return implode( ',', $values );
+	}
+
+	/**
+	 * Wraps a value in escaped double quotes or casts as an integer.
+	 * Only string and integers and supported for now.
+	 *
+	 * @since 3.2
+	 *
+	 * @global wpdb $wpdb
+	 *
+	 * @param int|string $value A value.
+	 * @return int|string
+	 */
+	public static function prepare_value( $value ) {
+		if ( ! is_numeric( $value ) ) {
+			return $GLOBALS['wpdb']->prepare( '%s', $value );
+		}
+
+		return (int) $value;
+	}
+}