sorting array value without using built in php like sort() etc

Answer 1

Check this one , this one is more efficient

$array=array('2','4','8','5','1','7','6','9','10','3');


for($i=1;$i< count($array);$i++)
{
   for($j=$i;$j>0;$j--)
   {    
       if($array[$j] < $array[$j-1])
       { 
           $tmp = $array[$j];
           $array[$j] = $array[$j-1];
           $array[$j-1] = $tmp ;
       }
   }
}

echo "<pre>";
print_r($array);

Answer 2

We can use a Bubble Sort for sorting.

The best-case performance of O(n). Otherwise, best-case == worse-case == average-case == O(n^2)

$Obj1 = array(20, 30, 10, 50, 40, 60, 100, 90, 80, 70);

 $temp;

print_r($Obj1);


for ($i = 0; $i < sizeof($Obj1) - 1; $i++) {

for ($j = sizeof($Obj1) - 1; $j > $i; $j--) {
    if ($Obj1[$j - 1] > $Obj1[$j]) {
        $temp = $Obj1[$j-1];
        $Obj1[$j-1] = $Obj1[$j];
        $Obj1[$j] = $temp;
        $temp = 0;
    }
}

}

print_r($Obj1);

Answer 3

$arr = array(8, 2, 7, 4, 5);

for($j=0; $j <= count($arr)-1; $j++){
  for($i=0; $i <= count($arr)-1; $i++){

      if( $arr[$i] < $arr[$j]){  //'<' or '>' operator for Asc, Dec.
         $temp = $arr[$i];
         $arr[$i] = $arr[$j];
         $arr[$j] = $temp;
      }
}
echo'<pre>';
print_r($arr);

Answer 4

Sorting array value without using built in php like sort() etc show demo Only for php7.2.0 - 7.4.4

<?php
$str = [54,23,2,56,7,2,300];
$count = count($str);
for ($j = 0; $j < $count; $j++) {
for ($i = $j + 1; $i < $count; $i++) {
    if ($str[$i] < $str[$j]) {
        list($str[$i], $str[$j]) = [$str[$j], $str[$i]];
    }
}
}
print_r($str);
?>

Answer 5

Here is the way of sorting.

<?php

$array=array('2','4','8','5','1','7','6','9','10','3');

echo "Unsorted array is: ";
echo "<br />";
print_r($array);


for($j = 0; $j < count($array); $j ++) {
    for($i = 0; $i < count($array)-1; $i ++){

        if($array[$i] > $array[$i+1]) {
            $temp = $array[$i+1];
            $array[$i+1]=$array[$i];
            $array[$i]=$temp;
        }       
    }
}

echo "Sorted Array is: ";
echo "<br />";
print_r($array);

?>

Answer 6

    **Using Bubbole Sort:**
<?php
        $arr =array(12,10,190,90,890);
        echo "Before Sorting Array";echo '</br>';
        print_r($arr);echo '</br>';
        echo 'After Sorting Arry:'.'</br>';
        for ($i = 0; $i < sizeof($arr); $i++) {
            for ($j = $i + 1; $j < sizeof($arr); $j++) {
                $tmp = 0;
                if ($arr[$i] > $arr[$j]) {
                    $tmp = $arr[$i];
                    $arr[$i] = $arr[$j];
                    $arr[$j] = $tmp;
                }
            }
            echo $arr[$i];echo '</br>';
        }
    ?>