array length - loop

Question

I have these values:

$x[0][0] = 1;
$x[0][1] = 2;
$x[0][2] = 3;

$x[1][0] = 4;
$x[1][1] = 5;
$x[1][2] = 6;

$x[2][0] = 7;
$x[2][1] = 8;
$x[2][2] = 9;

Now, i need to make an autonomous array. Basically, it will change with the dimension. For example a 4*4 and not a 3*3.

    $arr= array(
    0=>array($x[0][0],$x[0][1],$x[0][2]), 
    1=>array($x[1][0],$x[1][1],$x[1][2]), 
    2=>array($x[2][0],$x[2][1],$x[2][2])
    )

I am trying a for loop, but without success. Any idea?

abcde123483 · Accepted Answer · 2011-10-08 22:54:37Z

1

$x[0][0] = 1;
$x[0][1] = 2;
$x[0][2] = 3;

$x[1][0] = 4;
$x[1][1] = 5;
$x[1][2] = 6;

$x[2][0] = 7;
$x[2][1] = 8;
$x[2][2] = 9;

$arr = array();
for ($i = 0; $i < 3; $i++) {
    $arr[$i] = array();
    for ($j = 0; $j < 3; $j++) {
        $arr[$i][$j] = $x[$i][$j];

    }   
}

print_r($arr);

If I understand you correctly

answered Oct 8, 2011 at 22:54

abcde123483

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Comments

shox · Accepted Answer · 2011-10-08 23:06:44Z

0

You mean nested loop ? like (sample values ) :

$ar = array();
for( $i =0 ;$i<5;$i++)
{
  for($j=0;$j<5;$j++)
  {
     $ar[$i][$j] = 0 ;
  }

}

edited Oct 8, 2011 at 23:06

answered Oct 8, 2011 at 22:53

shox

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1 Comment

shox Over a year ago

sorry i mean $ar[$i][$j] = 0 ;

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