靠近$limit变量的strlen上的php组数组

Question

需要帮助。我希望根据与$limit关闭的strlen对数组进行分组，并按总长度进行排序。

我的数组看起来如下：

(
    [0] => Isofix
    [1] => Parkinghelp
    [2] => Rainsensor
    [3] => Led light
    [4] => Hill Start Assist
    [5] => Dynamic brake light
    [6] => Cornering Brake Control
)

例如，我想总结一下接近29的最佳选项。

所以理想情况下，这是我想要找到的组合

侧偏制动控制(23)+等距(6)= 29

动态制动灯(19)+雨水传感器(10)= 29

山启动辅助(17)+ Parkinghelp(11) = 28

Led灯= 90

我的最后一个数组应该如下所示：

Array
(
    [0] => Cornering Brake * Control Isofix
    [1] => Dynamic brake light * Rainsensor
    [2] => Hill Start Assist * Parkinghelp
    [3] => Led light
)


// code  

$limit = 29;

$arr = array('Isofix', 'Parkinghelp', 'Rainsensor', 'Led light', 'Hill Start Assist', 'Dynamic brake light', 'Cornering Brake Control');

foreach ($arr as $key => $value) {
  echo $value . ' - ' . strlen($value);
  echo "\n";
}

// this is what i have so far. But it's not checking every possibility

$limit = 29;
$result9009 = array(''); 
$cur_key = 0;
foreach ($arr as $word) {
  if (strlen($result9009[$cur_key]) + strlen($word) <= $limit) {
        $result9009[$cur_key] .= ' * ' . $word;
     } else {
        $result9009[] = $word;
        $cur_key++;
     }
  }

Answer 1

希望这有帮助，您应该添加最后一个案例，并尝试提高复杂性。

<?php
function cmp($a, $b)
{
    return $a["key"] >= $b["key"];
}

$limit = 29;

$arr = array('Isofix', 'Parkinghelp', 'Rainsensor', 'Led light', 'Hill Start Assist', 'Dynamic brake light', 'Cornering Brake Control');
$result=[];
$arrayToCheckin=[];
for ($i=0; $i < count($arr); $i++) {
    for ($j=$i+1; $j < count($arr); $j++) {
        $key = abs(strlen($arr[$i]) + strlen($arr[$j]) - $limit);
            $arrayToCheckin[] = [
                'key'=>$key,
                'elem1'=>$arr[$i],
                'elem2'=>$arr[$j]
                ];
    }
}
usort($arrayToCheckin, "cmp");
$control = [];
foreach ($arrayToCheckin as $val) {
    if(!in_array($val['elem1'], $control) && !in_array($val['elem2'], $control)) {
        $result[] =  $val['elem1'].'*'.$val['elem2'];   
        $control[] = $val['elem1'];
        $control[] = $val['elem2'];
    }
}
var_export($result);

输出

array (
  0 => 'Isofix*Cornering Brake Control',
  1 => 'Rainsensor*Dynamic brake light',
  2 => 'Parkinghelp*Hill Start Assist',
)