From f5e7fcf51fcaff47384d58f285f672916b4619af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=90=91=E6=9E=97?= <as2252258@163.com>
Date: Fri, 23 Sep 2022 18:59:35 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=98=E6=9B=B4?=
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---
 function.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/function.php b/function.php
index 66f4ecc2..fa535912 100644
--- a/function.php
+++ b/function.php
@@ -35,6 +35,18 @@ if (!function_exists('make')) {
 		return Kiri::getDi()->get($name);
 	}
 
+}
+
+
+if (!function_exists('isJson')) {
+
+
+	function isJson(?string $string): bool
+	{
+		if (is_null($string)) return false;
+		return str_starts_with($string, '{') && str_starts_with($string, '[')
+			&& str_ends_with($string, '}') && str_ends_with($string, ']');
+	}
 
 }