From a2300eb3aa428a080314caf0c0b60556f6701ffa Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 20 Nov 2013 14:04:06 +0100
Subject: [PATCH] [feature/patchwork-utf8] Remove utf8_str_replace

---
 phpBB/includes/utf/utf_tools.php | 47 --------------------------------
 phpBB/phpbb/db/driver/driver.php |  8 +++---
 2 files changed, 4 insertions(+), 51 deletions(-)

diff --git a/phpBB/includes/utf/utf_tools.php b/phpBB/includes/utf/utf_tools.php
index 19963287e5..2fbc1ce520 100644
--- a/phpBB/includes/utf/utf_tools.php
+++ b/phpBB/includes/utf/utf_tools.php
@@ -1902,50 +1902,3 @@ function utf8_basename($filename)
 
 	return $filename;
 }
-
-/**
-* UTF8-safe str_replace() function
-*
-* @param string $search The value to search for
-* @param string $replace The replacement string
-* @param string $subject The target string
-* @return string The resultant string
-*/
-function utf8_str_replace($search, $replace, $subject)
-{
-	if (!is_array($search))
-	{
-		$search = array($search);
-		if (is_array($replace))
-		{
-			$replace = (string) $replace;
-			trigger_error('Array to string conversion', E_USER_NOTICE);
-		}
-	}
-
-	$length = sizeof($search);
-
-	if (!is_array($replace))
-	{
-		$replace = array_fill(0, $length, $replace);
-	}
-	else
-	{
-		$replace = array_pad($replace, $length, '');
-	}
-
-	for ($i = 0; $i < $length; $i++)
-	{
-		$search_length = utf8_strlen($search[$i]);
-		$replace_length = utf8_strlen($replace[$i]);
-
-		$offset = 0;
-		while (($start = utf8_strpos($subject, $search[$i], $offset)) !== false)
-		{
-			$subject = utf8_substr($subject, 0, $start) . $replace[$i] . utf8_substr($subject, $start + $search_length);
-			$offset = $start + $replace_length;
-		}
-	}
-
-	return $subject;
-}
diff --git a/phpBB/phpbb/db/driver/driver.php b/phpBB/phpbb/db/driver/driver.php
index 4be315a154..8d360fc3e2 100644
--- a/phpBB/phpbb/db/driver/driver.php
+++ b/phpBB/phpbb/db/driver/driver.php
@@ -363,8 +363,8 @@ abstract class driver implements driver_interface
 	*/
 	function sql_like_expression($expression)
 	{
-		$expression = utf8_str_replace(array('_', '%'), array("\_", "\%"), $expression);
-		$expression = utf8_str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);
+		$expression = str_replace(array('_', '%'), array("\_", "\%"), $expression);
+		$expression = str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);
 
 		return $this->_sql_like_expression('LIKE \'' . $this->sql_escape($expression) . '\'');
 	}
@@ -374,8 +374,8 @@ abstract class driver implements driver_interface
 	*/
 	function sql_not_like_expression($expression)
 	{
-		$expression = utf8_str_replace(array('_', '%'), array("\_", "\%"), $expression);
-		$expression = utf8_str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);
+		$expression = str_replace(array('_', '%'), array("\_", "\%"), $expression);
+		$expression = str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);
 
 		return $this->_sql_not_like_expression('NOT LIKE \'' . $this->sql_escape($expression) . '\'');
 	}