Add pkwk_log function for application logging

diff --git a/lib/func.php b/lib/func.php
index e061af8..157bf65 100644 (file)
--- a/lib/func.php
+++ b/lib/func.php
@@ -8,6 +8,24 @@
 //
 // General functions
 
+function pkwk_log($message)
+{
+       $log_filepath = 'log/error.log.php';
+       static $dateTimeExists;
+       if (!isset($dateTimeExists)) {
+               $dateTimeExists = class_exists('DateTime');
+               error_log("<?php\n", 3, $log_filepath);
+       }
+       if ($dateTimeExists) {
+               // for PHP5.2+
+               $d = \DateTime::createFromFormat('U.u', sprintf('%6F', microtime(true)));
+               $timestamp = substr($d->format('Y-m-d H:i:s.u'), 0, 23);
+       } else {
+               $timestamp = date('Y-m-d H:i:s');
+       }
+       error_log($timestamp . ' ' . $message . "\n", 3, $log_filepath);
+}
+
 function is_interwiki($str)
 {
        global $InterWikiName;