From 4b414c087995cbf7b1a456d1ae6fbe09263b57ec Mon Sep 17 00:00:00 2001
From: hide_d <hided62@gmail.com>
Date: Fri, 9 Feb 2018 02:11:58 +0900
Subject: [PATCH] =?UTF-8?q?=EC=8B=A4=EC=88=98=EB=A5=BC=20=EC=A4=84?=
 =?UTF-8?q?=EC=9D=B4=EA=B8=B0=20=EC=9C=84=ED=95=9C=20randBool=20=ED=95=A8?=
 =?UTF-8?q?=EC=88=98=20=EC=B6=94=EA=B0=80?=
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---
 twe/func.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/twe/func.php b/twe/func.php
index 6fb84867..d164e06e 100644
--- a/twe/func.php
+++ b/twe/func.php
@@ -24,6 +24,14 @@ function randF(){
     return mt_rand() / mt_getrandmax();
 }
 
+/**
+ * $prob의 확률로 true를 반환
+ * @return boolean
+ */
+function randBool($prob = 0.5){
+    return randF() < $prob;
+}
+
 /** 
  * 로그인한 유저의 전역 id를 받아옴 
  *