Question

How to get the rows and columns of a matrix (2D array) in PHP

Answer 1

$arr = array(     
             array(1, 2, 3, 5, 6),  
             array(4, 5, 6, 5, 6),  
             array(7, 8, 9, 5, 6)  
           );  
   
$rows = count($arr);  
$cols = count($arr[0]);  

echo "rows: " . $rows . "\n";
echo "cols: " . $cols . "\n";
   




/*
run:

rows: 3
cols: 5

*/

 

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