PHP多维数组未定义偏移量错误[关闭]

Question

Ok, so I have a multidimensional array, represented below. The for loop iterates through it and adds a line to my variable.

$command and $commands exist. The rest of the function is all correct. My array gets created properly and $input_filepath points to a variable that exists.

I cannot for the life of me figure out why this is occurring. Maybe someone sees what I did wrong? It looks like a simple for loop to me, it just breaks.

Array $input_filename

Array ( 
        [0] => Array ( 
                       [0] => cheque_1.tiff 
                       [1] => cheque_2.tiff 
          ) 
        [1] => Array ( 
                       [0] => supportDoc_1_0.tiff 
                       [1] => supportDoc_2_1.tiff 
                       [2] => supportDoc_1_2.tiff 
                       [3] => supportDoc_2_3.tiff 
                     ) 
      )

Code

for($i=0;$i<count($input_filename);$i++)
{
    for($j=0;$j<count($input_filename[$i]);$i++)
    {
        $commands .= $command.$input_filepath.$input_filename[$i][$j]." ".rtrim($input_filepath.$input_filename[$i][$j], ".tiff").".jpg
";
    }
}

Result

Undefined offset: 2

The error is pointing to the second for loop.

Any help regarding this issue is greatly appreciated, thank you

Answer 1

Probably just need to change $i++ to $j++ here:

for($j=0;$j<count($input_filename[$i]);$i++)