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msd2/wordpress/wp-content/plugins/amp/includes/utils/class-amp-string-utils.php

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+<?php
+/**
+ * Class AMP_String_Utils
+ *
+ * @package AMP
+ */
+
+/**
+ * Class with static string utility methods.
+ */
+class AMP_String_Utils {
+
+	/**
+	 * Checks whether a given string ends in the given substring.
+	 *
+	 * @param string $haystack Input string.
+	 * @param string $needle   Substring to look for at the end of $haystack.
+	 * @return bool True if $haystack ends in $needle, false otherwise.
+	 */
+	public static function endswith( $haystack, $needle ) {
+		return '' !== $haystack
+			&& '' !== $needle
+			&& substr( $haystack, -strlen( $needle ) ) === $needle;
+	}
+}