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<html>
	<head>
		<title>PHP array manipulation</title>
		
	<style>
		body{
		border:2px solid black;
		height:auto;
		width:500px;
		margin-left:500px;
		}
	</style>
	</head>
	<body>
	<center>
		<h1>PHP array manipulatiopn Function</h1>
		
		<form method="POST">
			<lable for="courses">Enter Courses(comma-separted):</lable> <br>
			<input type="text" id="courses" name="courses" placeholder="e.g. BCA,BBA, BCOM, MCA" requried><br><br>
			<input type="submit" name="submit" value="submit">
		</form>
		
		<?php
			if (isset($_POST['submit']))
			{
				$courses=explode(",",$_POST['courses']);
				
				echo"<h3>Original array:</h3>";
				foreach ($courses as $course){
					echo $course."<br>";
				}
				echo "<hr>";
				
				echo "Lenght of the array is: ".count($courses);
				echo"<hr>";
				
				echo"sorted array is as follows: <br>";
				sort($courses);
				foreach($courses as $course){
					echo $course."<br>";
				}
				echo "<hr>";
				
				echo "reversed array is as  folows: <br>";
				$reversedCourses= array_reverse($courses);
				foreach($reversedCourses as $course){
					echo $course."<br>";
					}
				
				echo"<hr>";
				
				echo"Searching for 'BCA' in the given array:<br>";
				$search= array_search('BCA',$courses);
				if($search!=false){
					echo"'BCA' found at index $search.<br>";
				}else{
					echo"'BCA' not found <br>";
				}
				
				echo"<br>";
				
				echo"Array intersction (with predefined array):<br>";
				$name=array('BCA','BBA','MCA','BA');
				$intersection=array_intersect($courses,$name);
				foreach($intersection as $course){
					echo $course."<br>";
				}
				
				
				echo"<hr>";
				echo"Array Merge:<br>";
				$merged=array_merge($courses,$name);
				foreach($merged as $course){
					echo$course."<br>";
				}
				
				echo"<hr>";
				
				echo"removing duplicate element form merged array: <br>";
				$unique=array_unique($merged);
				foreach($unique as $course){
					echo$course."<br>";
				}
			}
		?>
		</center>
	</body>
</html>
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