Tests: added PHP test with time check in error log messages.

test/php/error_log/index.php

@@ -0,0 +1,3 @@
+<?php
+error_log("Error in application");
+?>

test/test_php_application.py

@@ -1,5 +1,7 @@
 import os
+import re
 import shutil
+import time
 import unittest
 
 from unit.applications.lang.php import TestApplicationPHP
@@ -488,6 +490,30 @@ class TestPHPApplication(TestApplicationPHP):
             self.get()['body'], r'012345', 'disable_classes before'
         )
 
+    def test_php_application_error_log(self):
+        self.load('error_log')
+
+        self.assertEqual(self.get()['status'], 200, 'status')
+
+        time.sleep(1)
+
+        self.assertEqual(self.get()['status'], 200, 'status 2')
+
+        self.stop()
+
+        pattern = r'\d{4}\/\d\d\/\d\d\s\d\d:.+\[notice\].+Error in application'
+
+        self.assertIsNotNone(self.wait_for_record(pattern), 'errors print')
+
+        with open(self.testdir + '/unit.log', 'r', errors='ignore') as f:
+            errs = re.findall(pattern, f.read())
+
+            self.assertEqual(len(errs), 2, 'error_log count')
+
+            date = errs[0].split('[')[0]
+            date2 = errs[1].split('[')[0]
+            self.assertNotEqual(date, date2, 'date diff')
+
     def test_php_application_script(self):
         self.assertIn(
             'success',