Question

<?php
$test1 ="pass";
$test2 = "fail";
$test3 = "pass";
$check = array();
        for($i=0;$i<3;$i++){
            if($test1== "pass"){
                $num = 1;
            }
            if($test2 == "pass"){
                $num = 2;
            }
            if($test3 == "pass"){
                $num = 3;
            }

            echo $num;
            $check[$i] = $num;
        }
?>

值：test1 =“pass”，test2 =“fail”，test3 =“pass”

我想：$ check（1,3）

只选择“通行证”

我想在数组中输入一个等于“pass”的值。条件是该值必须等于“通过”。但test1，test2，test3不是数组。

Answer 1

据推测，你正在寻找这个：

$test1 = "pass";
$test2 = "fail";
$test3 = "pass";
$check = array();

for($i = 1; $i <=3; $i++) {
    $t  =   'test'.$i;
    if(${$t} == 'pass')
        $check[]    =   $i;
}

print_r($check);

给你：

Array
(
    [0] => 1
    [1] => 3
)

这有点难以辨别，但如果是这样，则使用Variable Variables，在使用顺序变量时减少某些脚本。

Answer 2

您可以这样做：

$test1 ="pass";
$test2 = "fail";
$test3 = "pass";
$check = array();
$num = '';

if($test1== "pass"){
    $num .= '1,';
}

if($test2 == "pass"){
    $num .= '2,';
}

if($test3 == "pass"){
    $num .= '3,';
}

$num = trim($num,',');
$check = explode(',',$num);

Answer 3

$test1 ="pass";
$test2 = "fail";
$test3 = "pass";    
$num =array();

for($i=0;$i<3;$i++){
    if($test1 == "pass"){
        $num[] = 1;                
    }

    if($test2 == "pass"){
        $num[] = 2;
    }

    if($test3 == "pass"){
        $num[] = 3;
    }
}

print_r(array_unique($num));

如果pass是值，如何插入数组

3 个答案: