diff --git a/phpBB/includes/functions_compatibility.php b/phpBB/includes/functions_compatibility.php
index 38b9cb40dc..1efc8c9c2e 100644
--- a/phpBB/includes/functions_compatibility.php
+++ b/phpBB/includes/functions_compatibility.php
@@ -19,21 +19,6 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
-/**
-* Casts a numeric string $input to an appropriate numeric type (i.e. integer or float)
-*
-* @param string $input		A numeric string.
-*
-* @return int|float			Integer $input if $input fits integer,
-*							float $input otherwise.
-*
-* @deprecated 3.2.10 (To be removed 4.0.0)
-*/
-function phpbb_to_numeric($input)
-{
-	return ($input > PHP_INT_MAX) ? (float) $input : (int) $input;
-}
-
 /**
  * Parse cfg file
  * @param string $filename
diff --git a/phpBB/phpbb/php/ini.php b/phpBB/phpbb/php/ini.php
deleted file mode 100644
index 441e3ff7f6..0000000000
--- a/phpBB/phpbb/php/ini.php
+++ /dev/null
@@ -1,175 +0,0 @@
-<?php
-/**
-*
-* This file is part of the phpBB Forum Software package.
-*
-* @copyright (c) phpBB Limited <https://www.phpbb.com>
-* @license GNU General Public License, version 2 (GPL-2.0)
-*
-* For full copyright and license information, please see
-* the docs/CREDITS.txt file.
-*
-*/
-
-namespace phpbb\php;
-
-/**
-* Wrapper class for ini_get function.
-*
-* Provides easier handling of the different interpretations of ini values.
-* @deprecated 3.2.10 (To be removed 4.0.0)
-*/
-class ini
-{
-	/**
-	* Simple wrapper for ini_get()
-	* See http://php.net/manual/en/function.ini-get.php
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool|string		False if configuration option does not exist,
-	*							the configuration option value (string) otherwise.
-	*/
-	public function get($varname)
-	{
-		return ini_get($varname);
-	}
-
-	/**
-	* Gets the configuration option value as a trimmed string.
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool|string		False if configuration option does not exist,
-	*							the configuration option value (string) otherwise.
-	*/
-	public function get_string($varname)
-	{
-		$value = $this->get($varname);
-
-		if ($value === false)
-		{
-			return false;
-		}
-
-		return trim($value);
-	}
-
-	/**
-	* Gets configuration option value as a boolean.
-	* Interprets the string value 'off' as false.
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool				False if configuration option does not exist.
-	*							False if configuration option is disabled.
-	*							True otherwise.
-	*/
-	public function get_bool($varname)
-	{
-		$value = $this->get_string($varname);
-
-		if (empty($value) || strtolower($value) == 'off')
-		{
-			return false;
-		}
-
-		return true;
-	}
-
-	/**
-	* Gets configuration option value as an integer.
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool|int			False if configuration option does not exist,
-	*							false if configuration option value is not numeric,
-	*							the configuration option value (integer) otherwise.
-	*/
-	public function get_int($varname)
-	{
-		$value = $this->get_string($varname);
-
-		if (!is_numeric($value))
-		{
-			return false;
-		}
-
-		return (int) $value;
-	}
-
-	/**
-	* Gets configuration option value as a float.
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool|float		False if configuration option does not exist,
-	*							false if configuration option value is not numeric,
-	*							the configuration option value (float) otherwise.
-	*/
-	public function get_float($varname)
-	{
-		$value = $this->get_string($varname);
-
-		if (!is_numeric($value))
-		{
-			return false;
-		}
-
-		return (float) $value;
-	}
-
-	/**
-	* Gets configuration option value in bytes.
-	* Converts strings like '128M' to bytes (integer or float).
-	*
-	* @param string $varname	The configuration option name.
-	* @return bool|int|float	False if configuration option does not exist,
-	*							false if configuration option value is not well-formed,
-	*							the configuration option value otherwise.
-	*/
-	public function get_bytes($varname)
-	{
-		$value = $this->get_string($varname);
-
-		if ($value === false)
-		{
-			return false;
-		}
-
-		if (is_numeric($value))
-		{
-			// Already in bytes.
-			return phpbb_to_numeric($value);
-		}
-		else if (is_string($value))
-		{
-			if (strlen($value) < 2)
-			{
-				// Single character.
-				return false;
-			}
-			else if (strlen($value) < 3 && $value[0] === '-')
-			{
-				// Two characters but the first one is a minus.
-				return false;
-			}
-		}
-
-		$value_lower = strtolower($value);
-		$value_numeric = phpbb_to_numeric($value);
-
-		switch ($value_lower[strlen($value_lower) - 1])
-		{
-			case 'g':
-				$value_numeric *= 1024;
-			case 'm':
-				$value_numeric *= 1024;
-			case 'k':
-				$value_numeric *= 1024;
-			break;
-
-			default:
-				// It's not already in bytes (and thus numeric)
-				// and does not carry a unit.
-				return false;
-		}
-
-		return $value_numeric;
-	}
-}