<?php #lib/main.php

/********************************************************************************
 *	Content: Most important functions                                           *
 *	Author: Nils Otterpohl                                                      *
 *	Last modification: 24.06.2019                                               *
 *	Version: alpha (incomplete, tested, commented)                              *
 ********************************************************************************/

#### INCOMPLETE! TBD: ##############
#	Mehr Datums- und Zeitformate	#
####################################

function SS($param) 
{ //Prevents injections from strings
  global $mysqli;
  return $mysqli->escape_string($param);
}

function SI($param)
{ //Prevents injections from integers
  return intval($param);
}

function myDate($time = 0)
{ //Formats timestamp to standard date format
  if ($time==0) $time = time();
  return date(FORMATDATE, $time);
}

function myTime($time = 0)
{ //Formats timestamp to standard time format
  if ($time==0) $time = time();
  return date(FORMATTIME, $time);
}

function myDateTime($time = 0)
{ //Formats timestamp to standard date and time format
  return myDate($time)." ".myTime($time);
}
function fmtTime($format, $time = 0)
{ //Formats timestamp to a preset value
  global $times;
  return (isset($times[$format]) ? date($times[$format], $time) : myDateTime);
}

function addError($ident, $add)
{ //Lists an error
  global $err;
  if (isset($err[$ident])) $err["out"][] = $err[$ident].$add;
  else $err["out"][] = $err["unknown"].$ident.$add;
}

function addLibrary($lib, $notify=true)
{ //Includes a php-library
  global $err;
  if (!(substr($lib,0,4)=="lib/")) $lib = "lib/".$lib;
  if (!(substr($lib,-4,4)==".php")) $lib.= ".php";
  if (file_exists($lib)) include_once($lib);
  elseif ($notify) addError("noLib", $lib);
}

function addStyle($css, $notify=true)
{ //adds a stylesheet to $output-array
  global $output, $err;
  if (file_exists($css) && ! in_array($css,$output["css"])) $output["css"][] = $css;
  elseif ($notify) addError("noCss", $css);
}

function addJscript($js, $notify=true)
{ //adds a javascript to $output-array
  global $output, $err;
  if (file_exists($js) && ! in_array($js,$output["js"])) $output["js"][] = $js;
  elseif ($notify) addError("noJs", $js);
}

?>