在php中，二维数组中的行数和列数？

Question

I have a two dimensional array with unknown number of elements.

$two_darray[row][column]; //there will be an unknown integer values instead of row and column keywords

If I were to write a for loop as follows, how can I determine how many rows and columns in my $two_darray. Can you please tell me if there is a library function in php that can tell me the value inside [????] [????]

for($row=0; $row<………; $row++)
{
    for($column =0; $column  <………; $ column ++)
    {
        echo $two_darray[$row][$column];
    }
    echo “
 end of one column 
”;
}

I really need to know the value of rows and columns in order to perform other calculations.

Answer 1

foreach ($two_darray as $key => $row) {
   foreach ($row as $key2 => $val) {
      ...
   }
}

No need to worry about how many elements are in each array, as foreach() will take care of it for you. If you absolutely refuse to use foreach, then just count() each array as it comes up.

$rows = count($two_d_array);
for ($row = 0; $row < $rows; $row++) {
     $cols = count($two_darray[$row]);
     for($col = 0; $col < $cols; $col++ ) {
        ...
     }
}