Bubble sort with PHP (small to Large)

array element values from small to large sort $arr =array (1,42,0,3,15,7,19,26); Define an intermediate variable $temp = 0; Number of outer loops for ($i =0; $i<> Two array element values adjacent to the right of the inner layer are compared for ($j =0; $j<> When the last array element value is greater than the previous array's original value if ($arr [$j]> $arr [$j +1]) { Array element Exchange $temp = $arr [$j]; $arr [$j]= $arr [$j +1]; $arr [$j +1]= $temp; } } The number of outer array loops is---count ($arr)-1 -1 reason (the array element value is compared when two comparisons are 3 array elements compared 2 times echo "This is the first". ($i + 1). " Results of the second comparison "; echo " "; Print_r ($arr); echo " "; } echo " "; echo " "; Print_r ($arr); echo " "; ?> Copy Code

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