Use mb_strcut (#1996)

* Use mb_strcut

Avoid cutting in the middle of a multi-byte UTF-8 character

* Forgotten php5-*

* Typo

* Whitespace

* More mb_strcut

2 files changed, 9 insertions, 0 deletions

diff --git a/lib/lib_install.php b/lib/lib_install.php
index 7305d8e28..d51a37e58 100644
--- a/lib/lib_install.php
+++ b/lib/lib_install.php
@@ -41,6 +41,7 @@ function checkRequirements($dbType = '') {
 	$dom = class_exists('DOMDocument');
 	$xml = function_exists('xml_parser_create');
 	$json = function_exists('json_encode');
+	$mbstring = extension_loaded('mbstring');
 	$data = DATA_PATH && is_writable(DATA_PATH);
 	$cache = CACHE_PATH && is_writable(CACHE_PATH);
 	$users = USERS_PATH && is_writable(USERS_PATH);
@@ -61,6 +62,7 @@ function checkRequirements($dbType = '') {
 		'dom' => $dom ? 'ok' : 'ko',
 		'xml' => $xml ? 'ok' : 'ko',
 		'json' => $json ? 'ok' : 'ko',
+		'mbstring' => $mbstring ? 'ok' : 'ko',
 		'data' => $data ? 'ok' : 'ko',
 		'cache' => $cache ? 'ok' : 'ko',
 		'users' => $users ? 'ok' : 'ko',
diff --git a/lib/lib_rss.php b/lib/lib_rss.php
index 5f460862e..60616b3ca 100644
--- a/lib/lib_rss.php
+++ b/lib/lib_rss.php
@@ -21,6 +21,12 @@ if (!function_exists('json_encode')) {
 
 defined('JSON_UNESCAPED_UNICODE') or define('JSON_UNESCAPED_UNICODE', 256);	//PHP 5.3
 
+if (!function_exists('mb_strcut')) {
+	function mb_strcut($str, $start, $length = null, $encoding = 'UTF-8') {
+		return substr($str, $start, $length);
+	}
+}
+
 /**
  * Build a directory path by concatenating a list of directory names.
  *
@@ -405,6 +411,7 @@ function check_install_php() {
 		'fileinfo' => extension_loaded('fileinfo'),
 		'dom' => class_exists('DOMDocument'),
 		'json' => extension_loaded('json'),
+		'mbstring' => extension_loaded('mbstring'),
 		'zip' => extension_loaded('zip'),
 	);
 }