只有当用户输入了行数和列数时，才知道如何打印模式？

I don't have any idea if how I am going to print a pattern, only if I input the number of row and column, help me guys, send your code

<?php  

    if (isset($_GET['row']) && $_GET['column']) {
        $row = $_GET['row'];
        $column = $_GET['column'];
        $output ="*";

        for ($i=$_GET['row']; $i <=1 ; $i++) { 
            for ($j=$i; $j <=$_GET['column']; $j++) { 
                $count = $i;
                if ($i == $j) {
                    echo $count. " ";
                }else{
                    echo $count +=4;
                }   echo "<br>";
            }
        }
    }



?>

here is what I want to have

Enter Row : 5 Enter Column : 4

Output:

*****
*****
*****
*****

You can try the following way with the help of array_fill() and implode(). The array_fill() function fills an array with values of * here and implode() join the stars to a single string.

// $_GET = ['row' => 5, 'column' => 4];

if (isset($_GET['row'], $_GET['column']) && $_GET['row'] > 0 && $_GET['column'] > 0) {
    for($i = 0; $i < $_GET['row']; $i++) {
       echo implode('', array_fill(0, $_GET['column'], '*')) . PHP_EOL;
    }     
}

Working demo.