Remove Element

Author: RamyHakam

ArrayProblems/RemoveElement.php

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+<?php
+
+namespace Hakam\LeetCodePhp\ArrayProblems;
+
+class RemoveElement
+{
+    /**
+     * @param Integer[] $nums
+     * @param Integer $val
+     * @return Integer
+     */
+    public function removeElement(array &$nums, int $val): int
+    {
+        $count = count($nums);
+        for($index = 0; $index<$count;$index ++)
+        {
+            if ($nums[$index] === $val) {
+                $nums[$index--] = $nums[--$count];
+            }
+        }
+        return $count;
+    }
+}

Tests/ArrayProblems/RemoveElementTest.php

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+<?php
+
+namespace ArrayProblems;
+
+use Hakam\LeetCodePhp\ArrayProblems\RemoveElement;
+use Hakam\LeetCodePhp\Tests\Helper\MainTest;
+
+class RemoveElementTest extends MainTest
+{
+    /**
+     * @dataProvider provideData
+     */
+    public function testWithDataList($expectedResult, $inputData): void
+    {
+       $removeElement = new RemoveElement();
+       $arrayOfNumbers = $inputData[0];
+       $count = $removeElement->removeElement($arrayOfNumbers,$inputData[1]);
+       self::assertEmpty(array_diff($expectedResult,array_slice($arrayOfNumbers,0,$count-1)));
+    }
+}

Tests/Helper/InputFiles/RemoveElementTest.json

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+{
+  "testCase1": {
+    "expectedResult": [2,2],
+    "input": [[3,2,2,3],3]
+  },
+  "testCase2": {
+    "expectedResult": [],
+    "input": [[],3]
+  }
+}