From c47bafa412965064846d82be391a0ba851ae4d20 Mon Sep 17 00:00:00 2001
From: amdrose <927410375@qq.com>
Date: Fri, 2 Jul 2021 01:47:13 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200001.=E4=B8=A4?=
 =?UTF-8?q?=E6=95=B0=E4=B9=8B=E5=92=8C.md=20php=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0001.两数之和.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/problems/0001.两数之和.md b/problems/0001.两数之和.md
index 31a808b0..5be94996 100644
--- a/problems/0001.两数之和.md
+++ b/problems/0001.两数之和.md
@@ -187,7 +187,23 @@ var twoSum = function (nums, target) {
 };
 ```
 
+php
 
+```php
+function twoSum(array $nums, int $target): array
+{
+    for ($i = 0; $i < count($nums);$i++) {
+        // 计算剩下的数
+        $residue = $target - $nums[$i];
+        // 匹配的index，有则返回index， 无则返回false
+        $match_index = array_search($residue, $nums);
+        if ($match_index !== false && $match_index != $i) {
+            return array($i, $match_index);
+        }
+    }
+    return [];
+}
+```
 
 
 -----------------------

From 46a4b5161cd5a777d6eb81547f2b25a7279248a5 Mon Sep 17 00:00:00 2001
From: amdrose <927410375@qq.com>
Date: Fri, 2 Jul 2021 01:54:55 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200015.=E4=B8=89?=
 =?UTF-8?q?=E6=95=B0=E4=B9=8B=E5=92=8C.md=20php=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0015.三数之和.md | 41 +++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/problems/0015.三数之和.md b/problems/0015.三数之和.md
index 5b77a170..36abb58c 100644
--- a/problems/0015.三数之和.md
+++ b/problems/0015.三数之和.md
@@ -354,6 +354,47 @@ def is_valid(strs)
 end
 ```
 
+php:
+
+```php
+function threeSum(array $nums): array
+{
+    $result = [];
+    $length = count($nums);
+    if ($length < 3) {
+        return [];
+    }
+    sort($nums);
+    for ($i = 0; $i < $length; $i++) {
+        // 如果大于0结束
+        if ($nums[$i] > 0) break;
+        // 去重
+        if ($i > 0 && $nums[$i] == $nums[$i - 1]) continue;
+        $left = $i + 1;
+        $right = $length - 1;
+        // 比较
+        while ($left < $right) {
+            $sum = $nums[$i] + $nums[$left] + $nums[$right];
+           if ($sum < 0) {
+               $left++;
+           } elseif ($sum > 0) {
+               $right--;
+           } else {
+               array_push($result, [$nums[$i], $nums[$left], $nums[$right]]);
+               while ($left < $right && $nums[$left] == $nums[$left + 1]) $left++;
+               while ($left < $right && $nums[$right - 1] == $nums[$right]) $right--;
+               $left++;
+               $right--;
+            }
+        }
+    }
+
+    return $result;
+}
+```
+
+
+
 -----------------------
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