feat: add php solution to lc problem: No.0605 (doocs#1041)

Author: Qiu-IT

solution/0600-0699/0605.Can Place Flowers/README.md

@@ -123,6 +123,31 @@ func canPlaceFlowers(flowerbed []int, n int) bool {
 }
 ```
 
+### **PHP**
+
+```php
+class Solution {
+    /**
+     * @param Integer[] $flowerbed
+     * @param Integer $n
+     * @return Boolean
+     */
+    function canPlaceFlowers($flowerbed, $n) {
+        array_push($flowerbed, 0);
+        array_unshift($flowerbed, 0);
+        for ($i = 1; $i < count($flowerbed) - 1; $i++) {
+            if ($flowerbed[$i] === 0) {
+                if ($flowerbed[$i - 1] === 0 && $flowerbed[$i + 1] === 0) {
+                    $flowerbed[$i] = 1;
+                    $n--;
+                }
+            }
+        }
+        return $n <= 0;
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0600-0699/0605.Can Place Flowers/README_EN.md

@@ -104,6 +104,31 @@ func canPlaceFlowers(flowerbed []int, n int) bool {
 }
 ```
 
+### **PHP**
+
+```php
+class Solution {
+    /**
+     * @param Integer[] $flowerbed
+     * @param Integer $n
+     * @return Boolean
+     */
+    function canPlaceFlowers($flowerbed, $n) {
+        array_push($flowerbed, 0);
+        array_unshift($flowerbed, 0);
+        for ($i = 1; $i < count($flowerbed) - 1; $i++) {
+            if ($flowerbed[$i] === 0) {
+                if ($flowerbed[$i - 1] === 0 && $flowerbed[$i + 1] === 0) {
+                    $flowerbed[$i] = 1;
+                    $n--;
+                }
+            }
+        }
+        return $n <= 0;
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0600-0699/0605.Can Place Flowers/Solution.php

@@ -0,0 +1,20 @@
+class Solution {
+    /**
+     * @param Integer[] $flowerbed
+     * @param Integer $n
+     * @return Boolean
+     */
+    function canPlaceFlowers($flowerbed, $n) {
+        array_push($flowerbed, 0);
+        array_unshift($flowerbed, 0);
+        for ($i = 1; $i < count($flowerbed) - 1; $i++) {
+            if ($flowerbed[$i] === 0) {
+                if ($flowerbed[$i - 1] === 0 && $flowerbed[$i + 1] === 0) {
+                    $flowerbed[$i] = 1;
+                    $n--;
+                }
+            }
+        }
+        return $n <= 0;
+    }
+}