Question

如何找到两个数组项之间的所有值（包括开始值和结束值）？

示例：

public function addError($attribute, $error = '') { $renamed_attr = $this->renamedFields($attribute); parent::addError($renamed_attr, $error); }

输入：array('3X' => '3X','EX'=> 'EX','VG'=>'VG','G'=>'G','F'=>'F','P'=>'P')，$arr，'EX'

输出：'F'

提前致谢..

Answer 1

尝试：

$arr = array('3X' => '3X','EX'=> 'EX','VG'=>'VG','G'=>'G','F'=>'F','P'=>'P');

function findValuesBetweenTwoItems($arr, $start, $end) {
  $result = [];
  $has_started = false;
  foreach ( $arr as $item->$value ) {
    if( ( $item != $end && $has_started ) || $item == $start) {
      array_push($result, $value);
      $has_started = true;
    }
    if( $item == $end ) {
       array_push($result, $value);
       return $result;
    }
}
$my_values = findValuesBetweenTwoItems($arr, 'EX', 'F');
var_dump($my_values);

Answer 2

$array = array('3X' => '3X','EX'=> 'EX','VG'=>'VG','G'=>'G','F'=>'F','P'=>'P');
$start = "3X";
$end ="F";
$new_array = [];
$i=0;$go=false;
foreach ($array as $element) {
    if($go){
        $new_array[$i] = $element; 
        $i++;
    }
    if($element==$start){
        $go = true;
    }
    if($element==$end){
        $go = false;
    }
}
$total_elems_new = count($new_array);
unset($new_array[$total_elems_new-1]);
print_r($new_array);

在PHP 5.6上测试

Answer 3

试试这个：

$array = array('3X' => '3X','EX'=> 'EX','VG'=>'VG','G'=>'G','F'=>'F','P'=>'P');
    $arrayKeys = array_keys($array);
    $input1 = '3X';
    $input2 = 'F';
    if(in_array($input1,$array) && in_array($input2,$array)) {
        if (array_search($input1, array_keys($array)) >= 0) {
            if (array_search($input2, array_keys($array)) >= 0) {
                if (array_search($input1, array_keys($array)) < array_search($input2, array_keys($array))) {
                    echo "Keys in between: ";
                    for ($i = array_search($input1, array_keys($array)); $i <= array_search($input2, array_keys($array)); $i++) {
                        echo $array[$arrayKeys[$i]] . ", ";
                    }
                } else {
                    echo "Keys in between: ";
                    for ($i = array_search($input2, array_keys($array)); $i <= array_search($input1, array_keys($array)); $i++) {
                        echo $array[$arrayKeys[$i]] . ", ";
                    }
                }
            } else {
                echo "Value not found!";
            }
        } else {
            echo "Value not found!";
        }
    } else{
        echo "Value not found!";
    }

Answer 4

$from   = 'EX';
$to     = 'F';
$result = null;
$state  = 0;

foreach ($a as $k => $v) {
  if (($state == 0 && $from === $v) || ($state == 1 && $to === $v))
    $state++;
  if ($state && $state < 3)
    $result[$k] = $v;
  elseif ($state >= 2)
    break;
}

if ($state != 2)
  $result = null;

如果$from为$state（初始值），则循环搜索第一次出现的0，如果$to，则首次出现$state是1。对于$state的其他值，循环停止处理。

当找到$from或$to时，$state会递增。这些值存储在$result $state is either 1 ( $ is found), or 2 ( $ to`中。{/ p>

因此，$state == 2表示找到了两个值，$result包含$a和$from之间$to数组的值。否则，$result被分配到null。

如何在php中获取两个数组值之间的所有值？

4 个答案: