Fixed issue #07236: Unable to concatenate number : join is undefined

Dev: adding join($arg), alias of implode("",$arg)

application/helpers/expressions/em_core_helper.php

@@ -185,6 +185,7 @@ function __construct()
 'is_null' => array('is_null', 'LEMis_null', $this->gT('Finds whether a variable is NULL'), 'bool is_null(var)', 'http://www.php.net/manual/en/function.is-null.php', 1),
 'is_numeric' => array('is_numeric', 'LEMis_numeric', $this->gT('Finds whether a variable is a number or a numeric string'), 'bool is_numeric(var)', 'http://www.php.net/manual/en/function.is-numeric.php', 1),
 'is_string' => array('is_string', 'LEMis_string', $this->gT('Find whether the type of a variable is string'), 'bool is_string(var)', 'http://www.php.net/manual/en/function.is-string.php', 1),
+'join' => array('exprmgr_join', 'LEMjoin', $this->gT('Join strings, return joined string.This function is an alias of implode("",argN)'), 'string join(arg1,arg2,...,argN)', '', -1),
 'list' => array('exprmgr_list', 'LEMlist', $this->gT('Return comma-separated list of values'), 'string list(arg1, arg2, ... argN)', '', -2),
 'log' => array('log', 'Math.log', $this->gT('Natural logarithm'), 'number log(number)', 'http://www.php.net/manual/en/function.log.php', 1),
 'ltrim' => array('ltrim', 'ltrim', $this->gT('Strip whitespace (or other characters) from the beginning of a string'), 'string ltrim(string [, charlist])', 'http://www.php.net/manual/en/function.ltrim.php', 1,2),
@@ -2726,6 +2727,8 @@ static function UnitTestEvaluator()
 64~if((one < two),pow(2,6),pow(6,2))
 H e l l o~implode(' ','H','e','l','l','o')
 1|2|3|4|5~implode('|',one,two,three,four,five)
+123~join(1,2,3)
+123 5~join(one,2,three," ",five)
 4~intval('4')
 4~intval('100',2)
 5~intval(5.7)
@@ -3378,6 +3381,16 @@ function exprmgr_list($args)
     return $result;
 }
 
+/**
+ * Join together $args[N]
+ * @param <type> $args
+ * @return <type>
+ */
+function exprmgr_join($args)
+{
+    return implode("",$args);
+}
+
 /**
  * Join together $args[1-N] with $arg[0]
  * @param <type> $args

scripts/expressions/em_javascript.js

@@ -1,5 +1,19 @@
-/* Core JavaScript functions needed by ExpressionManager
+/*
+ * Core JavaScript functions needed by ExpressionManager
  * @author Thomas M. White (TMSWhite)
+ * @author Denis Chenu (Shnoulle)
+ * Portion from php.js is copyright 2012 Kevin van Zonneveld.
+ * php.js is dual licensed under the MIT licenses.
+ *
+ * This file is part of LimeSurvey
+ * Copyright (C) 2007-2013 The LimeSurvey Project Team / Carsten Schmitz
+ * All rights reserved.
+ * License: GNU/GPL License v2 or later, see LICENSE.php
+ * LimeSurvey is free software. This version may have been modified pursuant
+ * to the GNU General Public License, and as distributed it includes or
+ * is derivative of works licensed under the GNU General Public License or
+ * other free or open source software licenses.
+ * See COPYRIGHT.php for copyright notices and details.
  */
 
 function LEMcount()
@@ -209,6 +223,18 @@ function LEMlist()
     return result;
 }
 
+ /**
+ * Returns concatenates list
+ */
+function LEMjoin()
+{
+    var result="";
+    for (i=0;i<arguments.length;++i) {
+        result += arguments[i];
+    }
+    return result;
+}
+
 /**
  * Returns concatenates list with first argument as the separator
  */
@@ -2510,4 +2536,4 @@ function time () {
     // *     example 1: timeStamp = time();
     // *     results 1: timeStamp > 1000000000 && timeStamp < 2000000000
     return Math.floor(new Date().getTime() / 1000);
-}
+}