From 7f30649d46cb35f2ff175f0f1309ae58fe962de9 Mon Sep 17 00:00:00 2001
From: nolanzzz <nolanwork131@gmail.com>
Date: Thu, 2 Sep 2021 23:52:20 -0400
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200383.=E8=B5=8E=E9=87=91?=
 =?UTF-8?q?=E4=BF=A1=20PHP=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 problems/0383.赎金信.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/problems/0383.赎金信.md b/problems/0383.赎金信.md
index 64503cef..32b0ff7f 100644
--- a/problems/0383.赎金信.md
+++ b/problems/0383.赎金信.md
@@ -266,6 +266,31 @@ var canConstruct = function(ransomNote, magazine) {
 };
 ```
 
+PHP:
+```php
+class Solution {
+    /**
+     * @param String $ransomNote
+     * @param String $magazine
+     * @return Boolean
+     */
+    function canConstruct($ransomNote, $magazine) {
+        if (count($ransomNote) > count($magazine)) {
+            return false;
+        }
+        $map = [];
+        for ($i = 0; $i < strlen($magazine); $i++) {
+            $map[$magazine[$i]] = ($map[$magazine[$i]] ?? 0) + 1;
+        }
+        for ($i = 0; $i < strlen($ransomNote); $i++) {
+            if (!isset($map[$ransomNote[$i]]) || --$map[$ransomNote[$i]] < 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+```
 
 
 -----------------------