First version

.gitignore

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+.idea

composer.json

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+{
+  "name": "danielcmm/dutils",
+  "type": "library",
+  "description": "Simple Utility Classes",
+  "keywords": ["utility","currency","date","environment"],
+  "homepage": "https://github.com/danielcmm/DUtils",
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "Daniel Miranda",
+      "email": "[email protected]",
+      "homepage": "https://github.com/danielcmm/DUtils",
+      "role": "Developer"
+    }
+  ],
+  "require": {
+    "php": ">=5.6.0"
+  },
+  "autoload": {
+    "psr-0": {
+      "DUtils": "src"
+    }
+  }
+}

src/DUtils/CurrencyUtils.php

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+<?php
+
+namespace DUtils;
+
+class CurrencyUtils{
+
+
+    public static function prepareToView($value){
+
+        if ($value != 0 && empty($value))
+            return "";
+
+        return number_format(static::getCurrencyInUSFormat($value), 2, ',', '.');
+    }
+
+    /**
+     * Prepara um valor para ser persistido na base de dados
+     * @param $value
+     * @return int|string
+     */
+    public static function prepareToPersist($value){
+
+        if (empty($value))
+            return 0;
+
+        $value = str_replace(["R$"," "],"",$value);
+        $valueFormatado  = static::getCurrencyInUSFormat($value);
+
+        if (!is_numeric($valueFormatado)){
+            return 0;
+        }
+
+        return number_format($valueFormatado, 2, '.', '');
+
+    }
+
+    public static function getCurrencyInUSFormat($value){
+
+        $value = "$value";
+
+        if (strlen($value) >=3 && ($value[strlen($value)-2] == "." || $value[strlen($value)-2] == ","))
+            $value .= "0";
+
+        $newValue = str_replace(",","",$value);
+        $newValue = str_replace(".","",$newValue);
+
+        if ($newValue == $value) //Significa que não tinha pontos ou virgulas, entao consideramos como um inteiro
+            $newValue .= "00";
+
+        return substr($newValue,0,-2) . '.' . substr($newValue,strlen($newValue)-2);
+
+    }
+
+
+}