试图比较两个数组PHP

Question

我正在尝试创建一个模拟彩票的程序。我用6个随机数创建我的第一个数组，然后尝试用随机数继续填充我的第二个数组，直到它们相同。当数字介于1到9之间时，它可以正常工作，但是当我将它延长到1到49之间时，就像真正的彩票一样，我只是抽出时间。

<?php 

    $number1 = $_POST['number1']; 
    $number2 = $_POST['number2']; 
    $number3 = $_POST['number3']; 
    $number4 = $_POST['number4']; 
    $number5 = $_POST['number5']; 
    $number6 = $_POST['number6']; 


$userArray = array($number1, $number2, $number3, $number4, $number5, $number6); 


// mix and max numbers that can be used with th lottery 
$min = 1; 
$max = 49; 
// random number between 0 and 1 simulating lottery 

    $lotNumber1 = rand ($min, $max); 
    $lotNumber2 = rand ($min, $max); 
    $lotNumber3 = rand ($min, $max); 
    $lotNumber4 = rand ($min, $max); 
    $lotNumber5 = rand ($min, $max); 
    $lotNumber6 = rand ($min, $max); 

$lotArray = array($lotNumber1, $lotNumber2, $lotNumber3, $lotNumber4, $lotNumber5, $lotNumber6); 

asort($userArray); 
asort($lotArray); 

$userString = implode($userArray, "_"); 
$lotString = implode($lotArray, "_"); 


$i = 0; 

set_time_limit(10000); 

while($lotString != $userString) { 

    $i ++; 

    $lotNumber1 = rand ($min, $max); 
    $lotNumber2 = rand ($min, $max); 
    $lotNumber3 = rand ($min, $max); 
    $lotNumber4 = rand ($min, $max); 
    $lotNumber5 = rand ($min, $max); 
    $lotNumber6 = rand ($min, $max); 

    $lotArray = array($lotNumber1, $lotNumber2,    $lotNumber3, $lotNumber4, $lotNumber5, $lotNumber6); 

    asort($lotArray); 

    $lotString = implode($lotArray, "_"); 

} 


echo '<pre>'; 
print_r ($lotString); 
echo '</pre>'; 

echo '<pre>'; 
print_r ($userString); 
echo '</pre>'; 

echo "YOU WON it took ".$i." times"; 


?> 

Answer 1

$lotNumber1 = rand ($min, $max); 
$lotNumber2 = rand ($min, $max); 
$lotNumber3 = rand ($min, $max); 
$lotNumber4 = rand ($min, $max); 
$lotNumber5 = rand ($min, $max); 
$lotNumber6 = rand ($min, $max); 

是一个问题，你应该使用随机（范围（1,49）），并采取了前6，以确保没有重复。

正如另一个答案所示，它是一个很大的计算，一个在1300万左右。这就是很多循环使得随机数和对它们进行排序的，你可能会需要一个较大的超时是30年代

我的代码是

<?php 

$number1 = 1; 
$number2 = 2; 
$number3 = 3; 
$number4 = 4; 
$number5 = 5; 
$number6 = 6; 


$userArray = array($number1, $number2, $number3, $number4, $number5, $number6); 


// mix and max numbers that can be used with th lottery 
$min = 1; 
$max = 49; 
// random number between 0 and 1 simulating lottery 

$lotArray = (range($min,$max)); 

asort($userArray); 


$userString = implode($userArray, "_"); 
$lotString = ""; 


$i = 0; 

set_time_limit(10000); 

while($lotString != $userString) { 
    $i ++; 
    shuffle($lotArray); 

    $lotA = array_slice($lotArray,0,6); 

    asort($lotA); 

    $lotString = implode($lotA, "_"); 

} 


echo '<pre>'; 
print_r ($lotString); 
echo '</pre>'; 

echo '<pre>'; 
print_r ($userString); 
echo '</pre>'; 

echo "YOU WON it took ".$i." times"; 


?> 

<pre>1_2_3_4_5_6</pre><pre>1_2_3_4_5_6</pre>YOU WON it took 12004536 times

真正0m41.926s