[ticket/9574] Remove conditional PHP<5.2 code

There is a large amount of conditional code for PHP < 5.2 that can be
removed with phpBB 3.1.

PHPBB3-9574

phpBB/includes/acp/acp_bbcodes.php

@@ -318,15 +318,12 @@ class acp_bbcodes
 		$utf8 = strpos($bbcode_match, 'INTTEXT') !== false;
 
 		// make sure we have utf8 support
+		// PHP may not be linked with the bundled PCRE lib and instead with an older version
 		$utf8_pcre_properties = false;
-		if (version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>=')))
-		{
-			// While this is the proper range of PHP versions, PHP may not be linked with the bundled PCRE lib and instead with an older version
 		if (@preg_match('/\p{L}/u', 'a') !== false)
 		{
 			$utf8_pcre_properties = true;
 		}
-		}
 
 		$fp_match = preg_quote($bbcode_match, '!');
 		$fp_replace = preg_replace('#^\[(.*?)\]#', '[$1:$uid]', $bbcode_match);

phpBB/includes/acp/acp_database.php

@@ -1007,43 +1007,8 @@ class sqlite_extractor extends base_extractor
 	function write_data($table_name)
 	{
 		global $db;
-		static $proper;
 
-		if (is_null($proper))
-		{
-			$proper = version_compare(PHP_VERSION, '5.1.3', '>=');
-		}
-
-		if ($proper)
-		{
 		$col_types = sqlite_fetch_column_types($db->db_connect_id, $table_name);
-		}
-		else
-		{
-			$sql = "SELECT sql
-				FROM sqlite_master
-				WHERE type = 'table'
-					AND name = '" . $table_name . "'";
-			$table_data = sqlite_single_query($db->db_connect_id, $sql);
-			$table_data = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', '', $table_data);
-			$table_data = trim($table_data);
-
-			preg_match('#\((.*)\)#s', $table_data, $matches);
-
-			$table_cols = explode(',', trim($matches[1]));
-			foreach ($table_cols as $declaration)
-			{
-				$entities = preg_split('#\s+#', trim($declaration));
-				$column_name = preg_replace('/"?([^"]+)"?/', '\1', $entities[0]);
-
-				// Hit a primary key, those are not what we need :D
-				if (empty($entities[1]) || (strtolower($entities[0]) === 'primary' && strtolower($entities[1]) === 'key'))
-				{
-					continue;
-				}
-				$col_types[$column_name] = $entities[1];
-			}
-		}
 
 		$sql = "SELECT *
 			FROM $table_name";

phpBB/includes/cache.php

@@ -82,7 +82,7 @@ class cache extends acm
 			$result = $db->sql_query($sql);
 
 			$censors = array();
-			$unicode = ((version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>='))) && @preg_match('/\p{L}/u', 'a') !== false) ? true : false;
+			$unicode = (@preg_match('/\p{L}/u', 'a') !== false) ? true : false;
 
 			while ($row = $db->sql_fetchrow($result))
 			{

phpBB/includes/db/mssql.php

@@ -41,14 +41,7 @@ class dbal_mssql extends dbal
 		@ini_set('mssql.textlimit', 2147483647);
 		@ini_set('mssql.textsize', 2147483647);
 
-		if (version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.1', '>=')))
-		{
 		$this->db_connect_id = ($this->persistency) ? @mssql_pconnect($this->server, $this->user, $sqlpassword, $new_link) : @mssql_connect($this->server, $this->user, $sqlpassword, $new_link);
-		}
-		else
-		{
-			$this->db_connect_id = ($this->persistency) ? @mssql_pconnect($this->server, $this->user, $sqlpassword) : @mssql_connect($this->server, $this->user, $sqlpassword);
-		}
 
 		if ($this->db_connect_id && $this->dbname != '')
 		{

phpBB/includes/functions.php

@@ -394,7 +394,7 @@ function _hash_gensalt_private($input, &$itoa64, $iteration_count_log2 = 6)
 	}
 
 	$output = '$H$';
-	$output .= $itoa64[min($iteration_count_log2 + ((PHP_VERSION >= 5) ? 5 : 3), 30)];
+	$output .= $itoa64[min($iteration_count_log2 + 5, 30)];
 	$output .= _hash_encode64($input, 6, $itoa64);
 
 	return $output;
@@ -480,24 +480,12 @@ function _hash_crypt_private($password, $setting, &$itoa64)
 	* consequently in lower iteration counts and hashes that are
 	* quicker to crack (by non-PHP code).
 	*/
-	if (PHP_VERSION >= 5)
-	{
 	$hash = md5($salt . $password, true);
 	do
 	{
 		$hash = md5($hash . $password, true);
 	}
 	while (--$count);
-	}
-	else
-	{
-		$hash = pack('H*', md5($salt . $password));
-		do
-		{
-			$hash = pack('H*', md5($hash . $password));
-		}
-		while (--$count);
-	}
 
 	$output = substr($setting, 0, 12);
 	$output .= _hash_encode64($hash, 16, $itoa64);

phpBB/includes/functions_user.php

@@ -1490,7 +1490,7 @@ function validate_username($username, $allowed_username = false)
 	$mbstring = $pcre = false;
 
 	// generic UTF-8 character types supported?
-	if ((version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>='))) && @preg_match('/\p{L}/u', 'a') !== false)
+	if (@preg_match('/\p{L}/u', 'a') !== false)
 	{
 		$pcre = true;
 	}
@@ -1626,7 +1626,7 @@ function validate_password($password)
 	$pcre = $mbstring = false;
 
 	// generic UTF-8 character types supported?
-	if ((version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>='))) && @preg_match('/\p{L}/u', 'a') !== false)
+	if (@preg_match('/\p{L}/u', 'a') !== false)
 	{
 		$upp = '\p{Lu}';
 		$low = '\p{Ll}';

phpBB/includes/search/fulltext_mysql.php

@@ -42,14 +42,11 @@ class fulltext_mysql extends search_backend
 
 		$this->word_length = array('min' => $config['fulltext_mysql_min_word_len'], 'max' => $config['fulltext_mysql_max_word_len']);
 
-		if (version_compare(PHP_VERSION, '5.1.0', '>=') || (version_compare(PHP_VERSION, '5.0.0-dev', '<=') && version_compare(PHP_VERSION, '4.4.0', '>=')))
+		// PHP may not be linked with the bundled PCRE lib and instead with an older version
-		{
-			// While this is the proper range of PHP versions, PHP may not be linked with the bundled PCRE lib and instead with an older version
 		if (@preg_match('/\p{L}/u', 'a') !== false)
 		{
 			$this->pcre_properties = true;
 		}
-		}
 
 		if (function_exists('mb_ereg'))
 		{

phpBB/includes/ucp/ucp_pm_viewfolder.php

@@ -282,7 +282,7 @@ function view_folder($id, $mode, $folder_id, $folder)
 					'subject'	=> censor_text($row['message_subject']),
 					'sender'	=> $row['username'],
 					// ISO 8601 date. For PHP4 we are able to hardcode the timezone because $user->format_date() does not set it.
-					'date'		=> $user->format_date($row['message_time'], (PHP_VERSION >= 5) ? 'c' : "Y-m-d\TH:i:s+00:00", true),
+					'date'		=> $user->format_date($row['message_time'], 'c', true),
 					'to'		=> ($folder_id == PRIVMSGS_OUTBOX || $folder_id == PRIVMSGS_SENTBOX) ? $address[$message_id] : '',
 					'message'	=> $message_row['message_text']
 				);

phpBB/includes/utf/utf_tools.php

@@ -109,12 +109,7 @@ if (extension_loaded('mbstring'))
 	/**
 	* UTF-8 aware alternative to strrpos
 	* Find position of last occurrence of a char in a string
-	*
-	* Notes:
-	* - offset for mb_strrpos was added in 5.2.0, we emulate if it is lower
 	*/
-	if (version_compare(PHP_VERSION, '5.2.0', '>='))
-	{
 	/**
 	* UTF-8 aware alternative to strrpos
 	* @ignore
@@ -136,45 +131,6 @@ if (extension_loaded('mbstring'))
 			return mb_strrpos($str, $needle, $offset);
 		}
 	}
-	}
-	else
-	{
-		/**
-		* UTF-8 aware alternative to strrpos
-		* @ignore
-		*/
-		function utf8_strrpos($str,	$needle, $offset = null)
-		{
-			// offset for mb_strrpos was added in 5.2.0
-			if (is_null($offset))
-			{
-				// Emulate behaviour of strrpos rather than raising warning
-				if (empty($str))
-				{
-					return false;
-				}
-
-				return mb_strrpos($str, $needle);
-			}
-			else
-			{
-				if (!is_int($offset))
-				{
-					trigger_error('utf8_strrpos expects parameter 3 to be long', E_USER_ERROR);
-					return false;
-				}
-
-				$str = mb_substr($str, $offset);
-
-				if (false !== ($pos = mb_strrpos($str, $needle)))
-				{
-					return $pos + $offset;
-				}
-
-				return false;
-			}
-		}
-	}
 
 	/**
 	* UTF-8 aware alternative to strpos

phpBB/install/convertors/functions_phpbb20.php

@@ -456,7 +456,7 @@ function phpbb_get_birthday($birthday = '')
 	{
 		$birthday = (int) $birthday;
 
-		if (!$birthday || $birthday == 999999 || ((version_compare(PHP_VERSION, '5.1.0') < 0) && $birthday < 0))
+		if (!$birthday || $birthday == 999999)
 		{
 			return ' 0- 0-   0';
 		}