Added some helpers for date string formatting.

app/Http/helpers.php

@@ -4,10 +4,10 @@
  * Returns true with a given percentage.
  *
  * @param  int     $prob Probability for true in percent.
- * 
  * @return boolean
  */
-function rand_bool($prob = 50) {
+function rand_bool($prob = 50)
+{
     if ($prob < 0 or $prob > 100) {
         throw new InvalidArgumentException('The value for the probability '.
           'must be in a range from 0 to 100.');
@@ -28,11 +28,40 @@ function rand_bool($prob = 50) {
  * argument.
  *
  * @param  integer $decimals Sets the number of decimal points.
- *
  * @return string
  */
-function formatAmount(float $amount, $decimals = 2) {
-    return number_format($amount, $decimals, ',', '.');
+function formatAmount(float $amount, $cash = true, $text = false,
+                      $decimals = 2)
+{
+    $euro = ($cash) ? ' €' : '';
+    if (!$text) {
+        $sign = ($amount < 0) ? '- ' : '';
+        
+        $left = '<span style=\'float: left;\'>';
+        $right = '<span style=\'float: right;\'>';
+        $span = '</span>';
+        
+        if ($amount == 0) {
+            return $right . '-&nbsp;' . $euro . $span; 
+        }
+        
+        return $left . $sign . $span . $right .
+               number_format(abs($amount), $decimals, ',', '.') . $euro . $span;
+    }
+
+    return number_format(abs($amount), $decimals, ',', '.') . $euro;
+}
+
+/**
+ * Return a formatted date string.
+ *
+ * @param  string $date
+ * @param  string $format
+ * @return string
+ */
+function formatDate($date, $format='d.m.Y')
+{
+    return Carbon\Carbon::parse($date)->format($format);
 }
 
 /**
@@ -43,9 +72,10 @@ function formatAmount(float $amount, $decimals = 2) {
  * @param  string $month
  * @return string 
  */
-function startOfMonth($year, $month) {
+function startOfMonth($year, $month, $format='d.m.Y')
+{
     return Carbon\Carbon::createFromDate($year, $month)
-                        ->startOfMonth()->format('Y-m-d');
+                        ->startOfMonth()->format($format);
 }
 
 /**
@@ -56,7 +86,7 @@ function startOfMonth($year, $month) {
  * @param  string $month
  * @return string 
  */
-function endOfMonth($year, $month) {
+function endOfMonth($year, $month, $format='d.m.Y') {
     return Carbon\Carbon::createFromDate($year, $month)
-                        ->endOfMonth()->format('Y-m-d');
+                        ->endOfMonth()->format($format);
 }