feat add php solution to lc problem: No.0350 (doocs#963)

Author: Qiu-IT

solution/0300-0399/0350.Intersection of Two Arrays II/README.md

@@ -199,6 +199,31 @@ impl Solution {
 }
 ```
 
+### **PHP**
+
+```php
+class Solution {
+    /**
+     * @param Integer[] $nums1
+     * @param Integer[] $nums2
+     * @return Integer[]
+     */
+    function intersect($nums1, $nums2) {
+        $rs = [];
+        for ($i = 0; $i < count($nums1); $i++) {
+            $hashtable[$nums1[$i]] += 1;
+        }
+        for ($j = 0; $j < count($nums2); $j++) {
+            if (isset($hashtable[$nums2[$j]]) && $hashtable[$nums2[$j]] > 0) {
+                array_push($rs, $nums2[$j]);
+                $hashtable[$nums2[$j]] -= 1;
+            }
+        }
+        return $rs;
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0300-0399/0350.Intersection of Two Arrays II/README_EN.md

@@ -188,6 +188,31 @@ impl Solution {
 }
 ```
 
+### **PHP**
+
+```php
+class Solution {
+    /**
+     * @param Integer[] $nums1
+     * @param Integer[] $nums2
+     * @return Integer[]
+     */
+    function intersect($nums1, $nums2) {
+        $rs = [];
+        for ($i = 0; $i < count($nums1); $i++) {
+            $hashtable[$nums1[$i]] += 1;
+        }
+        for ($j = 0; $j < count($nums2); $j++) {
+            if (isset($hashtable[$nums2[$j]]) && $hashtable[$nums2[$j]] > 0) {
+                array_push($rs, $nums2[$j]);
+                $hashtable[$nums2[$j]] -= 1;
+            }
+        }
+        return $rs;
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0300-0399/0350.Intersection of Two Arrays II/Solution.php

@@ -0,0 +1,20 @@
+class Solution {
+    /**
+     * @param Integer[] $nums1
+     * @param Integer[] $nums2
+     * @return Integer[]
+     */
+    function intersect($nums1, $nums2) {
+        $rs = [];
+        for ($i = 0; $i < count($nums1); $i++) {
+            $hashtable[$nums1[$i]] += 1;
+        }
+        for ($j = 0; $j < count($nums2); $j++) {
+            if (isset($hashtable[$nums2[$j]]) && $hashtable[$nums2[$j]] > 0) {
+                array_push($rs, $nums2[$j]);
+                $hashtable[$nums2[$j]] -= 1;
+            }
+        }
+        return $rs;
+    }
+}