Can't get List() function to working with array - php

Question

Here is my simple code and i'm not able to understand why and how...
$len = 5; // total number of numbers
$min = 1; // minimum
$max = 90; // maximum
$range = array(); // initialize array
foreach (range(0, $len - 1) as $i) {
while(in_array($num = mt_rand($min, $max), $range));
//$range[] = $num;
list($br1, $br2, $br3, $br4, $br5) = $range;
}
print_r($range);
//echo $br1." ".$br2." ".$br3." ".$br4." ".$br5;
Hope in your help...! Thanks!

Answer 1

Should be written as:
<?php
$len = 5; // total number of numbers
$min = 1; // minimum
$max = 90; // maximum
$range = array(); // initialize array
foreach (range(0, $len - 1) as $i) { // you need to repeat the loop $len times
// get a new random number in the given range and assign it to $num,
// do it until the generated number is unique (not present in $range)
// the loop body is empty, as all the action happens inside its condition
while(in_array($num = mt_rand($min, $max), $range));
// append the random number to array
$range[] = $num;
}
list($br1, $br2, $br3, $br4, $br5) = $range;
echo $br1." ".$br2." ".$br3." ".$br4." ".$br5;
Demo.
The existing version of your code never updates $range variable (the corresponding line is commented out for some reason), that's why it doesn't work.

Answer 2

You need simple modification in your code.Your are assign list in side loop.But which is put out site of loop. And your variable range array are need commented
$len = 5; // total number of numbers
$min = 1; // minimum
$max = 90; // maximum
$range = array(); // initialize array
foreach (range(0, $len - 1) as $i) {
while(in_array($num = mt_rand($min, $max), $range));
$range[] = $num;
}
list($br1, $br2, $br3, $br4, $br5) = $range;
print_r($br1);
print_r($br2);
//echo $br1." ".$br2." ".$br3." ".$br4." ".$br5;