Question

How to perform linear search (sequential search) in PHP

Answer 1

function Linear_Search($arr, $data) {
	$size = count($arr);
	
	for ($i = 0; $i < $size; $i++) {
		if ($data == $arr[$i]) return $i;
	}

	return -1;
}


$arr = array(4, 9, 78, 99, 10, 1200, 300);

$index = Linear_Search($arr, 99);

echo $index . "\n";




/*
run:

3

*/

 

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