Example code sharing for PHP two-dimensional array rectangle transpose

PHP two-dimensional array rectangle transpose instance

<?php    //two-D array transpose  //define a two-dimensional array  $arr =array (Array (), Array (4,5,6));  Defines an array to place the transpose data  $arr 1=array ();  Traverse Echo before transpose  "before transpose:";  for ($i =0; $i <count ($arr), $i + +) {for        ($j =0; $j <count ($arr [$i]); $j + +) {          echo $arr [$i];          }    echo "";  }  echo "Transpose before and after:";  Determine the number of lines after the appliance for  ($j =0; $j <count ($arr [0]), $j + +) {    $arr 1[$j]=array ();  }  for ($i =0; $i <count ($arr), $i + +) {for        ($j =0; $j <count ($arr [$i]); $j + +) {          $arr 1[$j] [$i]= $arr [$i] [$j];      echo $arr;    }  }  Traverse after transpose: for  ($k =0; $k <count ($arr 1); $k + +) {for        ($l =0; $l

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