dpa89292 2012-02-27 08:03
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php检查数组中至少有两个大于0的值

I have a PHP array.

Let's say

$array = array(20,1,0, 0, 0,0,8);

I need to check whether at least tow values available greater than 0 in the array. As an example.

$array = array(20,1,0, 0, 0,0,8); 
// True - Above array has at least two values which is > 0

$array = array(0,9,0, 0, 0,0,0); 
// False- Above array doesn't have at least two values which is > 0

I would like to know if there any easy way to get this done without looping through the array.

Thank you.

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  • dtlc84438 2012-02-27 08:18
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    You can use array_filter() to reduce your array to only non-zero items, then count them:

    $array = array(20, 0, 0, 0, 0, 0, 0);
    $temp = array_filter($array, function($value){
        return $value > 0;
    });
    echo count($temp) >= 2 ? "true" : "false";
    

    Note: For older PHP versions that do not support anonymous functions, you need to create the function separately and pass its name to the array_filter() function as a string.

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