diff --git a/wp-includes/pomo/po.php b/wp-includes/pomo/po.php
index 13fb16eb12..4a61aa8072 100644
--- a/wp-includes/pomo/po.php
+++ b/wp-includes/pomo/po.php
@@ -110,10 +110,10 @@ if ( ! class_exists( 'PO', false ) ) :
 		/**
 		 * Formats a string in PO-style
 		 *
-		 * @param string $string the string to format
+		 * @param string $input_string the string to format
 		 * @return string the poified string
 		 */
-		public static function poify( $string ) {
+		public static function poify( $input_string ) {
 			$quote   = '"';
 			$slash   = '\\';
 			$newline = "\n";
@@ -124,12 +124,12 @@ if ( ! class_exists( 'PO', false ) ) :
 				"\t"     => '\t',
 			);
 
-			$string = str_replace( array_keys( $replaces ), array_values( $replaces ), $string );
+			$input_string = str_replace( array_keys( $replaces ), array_values( $replaces ), $input_string );
 
-			$po = $quote . implode( "{$slash}n{$quote}{$newline}{$quote}", explode( $newline, $string ) ) . $quote;
+			$po = $quote . implode( "{$slash}n{$quote}{$newline}{$quote}", explode( $newline, $input_string ) ) . $quote;
 			// Add empty string on first line for readbility.
-			if ( false !== strpos( $string, $newline ) &&
-				( substr_count( $string, $newline ) > 1 || substr( $string, -strlen( $newline ) ) !== $newline ) ) {
+			if ( false !== strpos( $input_string, $newline ) &&
+				( substr_count( $input_string, $newline ) > 1 || substr( $input_string, -strlen( $newline ) ) !== $newline ) ) {
 				$po = "$quote$quote$newline$po";
 			}
 			// Remove empty strings.
@@ -140,17 +140,17 @@ if ( ! class_exists( 'PO', false ) ) :
 		/**
 		 * Gives back the original string from a PO-formatted string
 		 *
-		 * @param string $string PO-formatted string
+		 * @param string $input_string PO-formatted string
 		 * @return string enascaped string
 		 */
-		public static function unpoify( $string ) {
+		public static function unpoify( $input_string ) {
 			$escapes               = array(
 				't'  => "\t",
 				'n'  => "\n",
 				'r'  => "\r",
 				'\\' => '\\',
 			);
-			$lines                 = array_map( 'trim', explode( "\n", $string ) );
+			$lines                 = array_map( 'trim', explode( "\n", $input_string ) );
 			$lines                 = array_map( array( 'PO', 'trim_quotes' ), $lines );
 			$unpoified             = '';
 			$previous_is_backslash = false;
@@ -178,18 +178,18 @@ if ( ! class_exists( 'PO', false ) ) :
 		}
 
 		/**
-		 * Inserts $with in the beginning of every new line of $string and
+		 * Inserts $with in the beginning of every new line of $input_string and
 		 * returns the modified string
 		 *
-		 * @param string $string prepend lines in this string
-		 * @param string $with prepend lines with this string
+		 * @param string $input_string prepend lines in this string
+		 * @param string $with         prepend lines with this string
 		 */
-		public static function prepend_each_line( $string, $with ) {
-			$lines  = explode( "\n", $string );
+		public static function prepend_each_line( $input_string, $with ) {
+			$lines  = explode( "\n", $input_string );
 			$append = '';
-			if ( "\n" === substr( $string, -1 ) && '' === end( $lines ) ) {
+			if ( "\n" === substr( $input_string, -1 ) && '' === end( $lines ) ) {
 				/*
-				 * Last line might be empty because $string was terminated
+				 * Last line might be empty because $input_string was terminated
 				 * with a newline, remove it from the $lines array,
 				 * we'll restore state by re-terminating the string at the end.
 				 */
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a86b13ff61..a9eb10a91b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-54958';
+$wp_version = '6.2-alpha-54959';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.