From 3665c051d794a3abc3b350c8cc5cdb897ef54f76 Mon Sep 17 00:00:00 2001
From: SevenMonths <qinwen_shuai@163.com>
Date: Tue, 24 May 2022 16:53:39 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0(=E5=89=91=E6=8C=87Offer05.?=
 =?UTF-8?q?=E6=9B=BF=E6=8D=A2=E7=A9=BA=E6=A0=BC.md)=EF=BC=9Aphp=E7=89=88?=
 =?UTF-8?q?=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/剑指Offer05.替换空格.md | 34 ++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/problems/剑指Offer05.替换空格.md b/problems/剑指Offer05.替换空格.md
index 037bd427..63fb021a 100644
--- a/problems/剑指Offer05.替换空格.md
+++ b/problems/剑指Offer05.替换空格.md
@@ -415,6 +415,40 @@ func replaceSpace(_ s: String) -> String {
 
 
 
+PHP：
+```php
+function replaceSpace($s){
+    $sLen = strlen($s);
+    $moreLen = $this->spaceLen($s) * 2;
+
+    $head = $sLen - 1;
+    $tail = $sLen + $moreLen - 1;
+
+    $s = $s . str_repeat(' ', $moreLen);
+    while ($head != $tail) {
+        if ($s[$head] == ' ') {
+            $s[$tail--] = '0';
+            $s[$tail--] = '2';
+            $s[$tail] = '%';
+        } else {
+            $s[$tail] = $s[$head];
+        }
+        $head--;
+        $tail--;
+    }
+    return $s;
+}
+// 统计空格个数
+function spaceLen($s){
+    $count = 0;
+    for ($i = 0; $i < strlen($s); $i++) {
+        if ($s[$i] == ' ') {
+            $count++;
+        }
+    }
+    return $count;
+}
+```
 
 
 -----------------------