diff --git a/ext/standard/tests/strings/str_word_count.phpt b/ext/standard/tests/strings/str_word_count.phpt
new file mode 100644
index 00000000000..4c9c0780f63
--- /dev/null
+++ b/ext/standard/tests/strings/str_word_count.phpt
@@ -0,0 +1,70 @@
+--TEST--
+str_word_count()
+--FILE--
+<?php
+error_reporting(E_ALL);
+$str = "Hello friend, you're  
+    looking          good today!";
+$b =& $str;       
+var_dump(str_word_count($str, 1));
+var_dump(str_word_count($str, 2));
+var_dump(str_word_count($str));
+var_dump(str_word_count($str, 3)); 
+var_dump(str_word_count($str, 123));
+var_dump(str_word_count($str, -1));
+var_dump(str_word_count($str, 99999999999999999));
+var_dump(str_word_count($str, array()));
+var_dump(str_word_count($str, $b));
+var_dump($str);
+
+?>
+--EXPECTF--
+array(6) {
+  [0]=>
+  string(5) "Hello"
+  [1]=>
+  string(6) "friend"
+  [2]=>
+  string(6) "you're"
+  [3]=>
+  string(7) "looking"
+  [4]=>
+  string(4) "good"
+  [5]=>
+  string(5) "today"
+}
+array(6) {
+  [0]=>
+  string(5) "Hello"
+  [6]=>
+  string(6) "friend"
+  [14]=>
+  string(6) "you're"
+  [27]=>
+  string(7) "looking"
+  [44]=>
+  string(4) "good"
+  [49]=>
+  string(5) "today"
+}
+int(6)
+
+Warning: str_word_count(): The specified format parameter, '3' is invalid. in %s on line 9
+bool(false)
+
+Warning: str_word_count(): The specified format parameter, '123' is invalid. in %s on line 10
+bool(false)
+
+Warning: str_word_count(): The specified format parameter, '-1' is invalid. in %s on line 11
+bool(false)
+
+Warning: str_word_count(): The specified format parameter, '1569325056' is invalid. in %s on line 12
+bool(false)
+
+Warning: str_word_count(): The specified format parameter, '0' is invalid. in %s on line 13
+bool(false)
+
+Warning: str_word_count(): The specified format parameter, '0' is invalid. in %s on line 14
+bool(false)
+string(55) "Hello friend, you're  
+    looking          good today!"
\ No newline at end of file