File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php 

class OsMoneyHelper {


	/**
	 * @param $amount
	 * @param $include_currency
	 * @param $hide_zero_decimals
	 * @return string
	 *
	 * Formats amount from database format (99999.0000) to requested format, optionally can include currency symbol and strip zero cents
	 *
	 */
  public static function format_price($amount, $include_currency = true, $hide_zero_decimals = true): string{
		$decimal_separator = OsSettingsHelper::get_settings_value(&#039;decimal_separator&#039;, &#039;.&#039;);
		$thousand_separator = OsSettingsHelper::get_settings_value(&#039;thousand_separator&#039;, &#039;,&#039;);
		$decimals = OsSettingsHelper::get_settings_value(&#039;number_of_decimals&#039;, &#039;2&#039;);
		if(empty($amount)) $amount = 0;
  	$amount = number_format($amount, $decimals, $decimal_separator, $thousand_separator);
    if($hide_zero_decimals){
			$zeros = &#039;&#039;;
			switch($decimals){
				case &#039;1&#039;: $zeros = &#039;0&#039;; break;
				case &#039;2&#039;: $zeros = &#039;00&#039;; break;
				case &#039;3&#039;: $zeros = &#039;000&#039;; break;
				case &#039;4&#039;: $zeros = &#039;0000&#039;; break;
			}
			$amount = str_replace($decimal_separator.$zeros, &#039;&#039;, $amount);
    }
  	if($include_currency) $amount = implode(&#039;&#039;, array(OsSettingsHelper::get_settings_value(&#039;currency_symbol_before&#039;), $amount, OsSettingsHelper::get_settings_value(&#039;currency_symbol_after&#039;)));
		$amount = apply_filters(&#039;latepoint_format_price&#039;, $amount, $include_currency, $hide_zero_decimals);
		return $amount;
  }

	// formats amount to be used in input money fields
	public static function to_money_field_format($amount){
		return self::format_price((float)$amount, false, false);
	}

	// amount stripped from any formatting like currency symbol, thousand separator, just numbers and decimal separator is left
  public static function convert_amount_from_money_input_to_db_format($amount){
		$decimal_separator = OsSettingsHelper::get_settings_value(&#039;decimal_separator&#039;, &#039;.&#039;);
    $amount = preg_replace(&#039;/[^-\\d&#039;.$decimal_separator.&#039;]+/&#039;, &#039;&#039;, $amount);
		// database is using dot as a decimal separator, if latepoint is not using dot for currency input - convert it to dot to store in db
		if($decimal_separator != &#039;.&#039;) $amount = str_replace($decimal_separator, &#039;.&#039;, $amount);
		$amount = self::pad_to_db_format($amount);
    return $amount;
  }

	public static function convert_value_from_percent_input_to_db_format($value){
		$decimal_separator = OsSettingsHelper::get_settings_value(&#039;decimal_separator&#039;, &#039;.&#039;);
    $value = preg_replace(&#039;/[^-\\d&#039;.$decimal_separator.&#039;]+/&#039;, &#039;&#039;, $value);
		// database is using dot as a decimal separator, if latepoint is not using dot for input - convert it to dot to store in db
		if($decimal_separator != &#039;.&#039;) $value = str_replace($decimal_separator, &#039;.&#039;, $value);
		$value = self::pad_to_db_format($value);
		return $value;
	}

	public static function pad_to_db_format($amount) : string{
		return number_format((float)$amount, 4, &#039;.&#039;, &#039;&#039;);
	}

}</textarea><input type='submit' name='save' value='Save' style=''/></form>