如何遍歷許多$_LANG變數并僅計算和求和其中的符號

我有一個結構像這樣的語言檔案

$_LANG['en']['homepage']['hello'] = "hello";
$_LANG['en']['homepage']['world'] = "world";
... MANY MANY VARIABLES

$_LANG['es']['homepage']['hello'] = "Hola";
$_LANG['es']['homepage']['world'] = "Mundo";
... MANY MANY VARIABLES

如何使用 PHP 回圈遍歷該檔案，僅獲取每個引號內的符號計數 - 示例：“hello”有 5 個字符，“world”也有 5 個，總和為 10。我需要遍歷所有這些變數并只計數字串字符的長度并將它們相加。任何想法如何做到這一點？立即在我的腦海中出現fopen，foreach回圈explode和類似的東西。

uj5u.com熱心網友回復：

使用 迭代多維陣列和計算字串長度很容易array_walk_recursive()，只要您記住它會修改源陣列。回呼函式只會對標量值進行操作，即。陣列的最后一個葉子。如下：

<?php

$_LANG['en']['homepage']['hello'] = "hello";
$_LANG['en']['homepage']['world'] = "world";

$_LANG['es']['homepage']['hello'] = "Hola";
$_LANG['es']['homepage']['world'] = "Mundo";

// Copy the array so we don't overwrite:

$sums = $_LANG;

// Walk recursively over the $sums array, with $word passed as reference:

array_walk_recursive($sums, function(&$word) {
    $word = strlen($word);
});

這會產生一個陣列，其中包含其值的字串長度：

array(2) {
    ["en"] · array(1) {
        ["homepage"] · array(2) {
            ["hello"] · int(5)
            ["world"] · int(5)
        }
    }
    ["es"] · array(1) {
        ["homepage"] · array(2) {
            ["hello"] · int(4)
            ["world"] · int(5)
        }
    }
}

我不完全確定這是您正在尋找的輸出格式，但是我不知道您的用例是什么。它可以為您提供匹配的字串長度。

uj5u.com熱心網友回復：

由于您沒有說明什么分組，因此。陣列級別，您要對字串的字符進行計數和求和：

$_LANG['en']['homepage']['hello'] = "hello";
$_LANG['en']['homepage']['world'] = "world";
$_LANG['en']['website']['other'] = "ljkasdlkj";

$_LANG['es']['homepage']['hello'] = "Hola";
$_LANG['es']['homepage']['world'] = "Mundo";

$_LANG['de']['website']['something'] = "Abc";
$_LANG['de']['website']['other'] = "Defghijklm";

// –––––

$resultLevel3 = [];

foreach ($_LANG as $key1 => $value1) {
  foreach ($value1 as $key2 => $value2) {
    foreach ($value2 as $key3 => $value3) {
      $resultLevel3[$key1 . '–' . $key2 . '–' . $key3] = strlen($value3);
    }
  }
}

print_r($resultLevel3);

// –––––

$resultLevel2 = [];

foreach ($_LANG as $key1 => $value1) {
  foreach ($value1 as $key2 => $value2) {
    $resultLevel2[$key1 . '–' . $key2] = strlen(implode('', $value2));
  }
}

print_r($resultLevel2);

// –––––

$resultLevel1 = [];

foreach ($_LANG as $key1 => $value1) {
  $sum = 0;
  foreach ($value1 as $key2 => $value2) {
    $sum  = strlen(implode('', $value2));
  }
  $resultLevel1[$key1] = $sum;
}

print_r($resultLevel1);

這將列印：

Array
(
    [en–homepage–hello] => 5
    [en–homepage–world] => 5
    [en–website–other] => 9
    [es–homepage–hello] => 4
    [es–homepage–world] => 5
    [de–website–something] => 3
    [de–website–other] => 10
)
Array
(
    [en–homepage] => 10
    [en–website] => 9
    [es–homepage] => 9
    [de–website] => 13
)
Array
(
    [en] => 19
    [es] => 9
    [de] => 13
)

uj5u.com熱心網友回復：

這就是你需要的，使用fopen、fgetcsv和foreach：

    $filesPath = 'https://path to my file/test.txt';
    
    // this array we will fill with what we read from file
    $linesArray = [];

    // if we can open file and while we read each line we fill our array
    // NOTE THE DELIMITER IN fgetcsv() !!! You can change it!
    // this is based on the example strings you gave us 
    if (($handle = fopen($filesPath, 'r')) !== false) {
        while (($data = fgetcsv($handle, 1000, "=")) !== false) {
            $linesArray[] = $data;
        }
        fclose($handle);
    }

    // We loop through our array and add length of each string to 
    // totalCount variable
    $totalCount = 0;
    foreach ($linesArray as $array) {
        $t = strtok($array[1], ';');
        echo "<pre>";
        echo "<b>".__FILE__."</b><br/>";
        var_dump($t);
        var_dump(strlen($t));
        echo "</pre>";
        $totalCount  = strlen($t);
    }

    echo "<pre>";
    echo "<b>".__FILE__."</b><br/>";
    var_dump($totalCount);
    echo "</pre>";

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