如何使用PHP從字符串中查找特定字符以創建數組

Question

我有一些像下面這樣的字符串：

'STRIPLED 9.6W 24V 2.7K 120LED IP20 1CM',
'STRIPLED 9.6W 24V 3K 120LED IP20 1CM',
'STRIPLED H 6 W 24V 4K 140 LED IP20 1CM',
'STRIPLED HO 12.3 W 24V 3K 128 LED IP65 1CM',
'STRIPLED HO 20W 24V 2.7K 280 LED IP65 1CM',
'STRIPLED 14.4W 24V 2.7K 180 LED IP65 1 CM',

我試圖找到一些字符並創建像

預期結果：

Array
(
    [0] => Array
        (
            [power] => 9.6W 24V
            [temp] => 2.7
            [degrees] => IP20
        )

    [1] => Array
        (
            [power] => 9.6W 24V
            [temp] => 3
            [degrees] => IP20
        )
    [2] => Array
        (
            [power] => HO 12.3 W 24V
            [temp] => 3
            [degrees] => IP65
        )
)

但我無法找到正確的解決方案。

說明：條紋9.6W 24V 2.7K 120LED IP20 1CM

這里，W＆V表示功率，K表示溫度，IP表示度

---

我試過的代碼：

<?php 
$descriptions = [
    'STRIPLED 9.6W 24V 2.7K 120LED IP20 1CM',
    'STRIPLED 9.6W 24V 3K 120LED IP20 1CM',
    'STRIPLED H 6 W 24V 4K 140 LED IP20 1CM',
    'STRIPLED HO 12.3 W 24V 3K 128 LED IP65 1CM',
    'STRIPLED HO 20W 24V 2.7K 280 LED IP65 1CM',
    'STRIPLED 14.4W 24V 2.7K 180 LED IP65 1 CM',
]; 

$desc = [];
foreach($descriptions as $key=>$val){
    $desc[$key]['power'] = strstr($val, 'V', true);
    $desc[$key]['temp'] = strstr($val, 'K', true);
    $desc[$key]['degrees'] = strstr($val, 'IP', true);
}

echo "<pre>";
print_r($desc).exit;
?>

我看到這樣的輸出：

Array
(
    [0] => Array
        (
            [power] => STRIPLED 9,6W 24
            [temp] => STRIPLED 9,6W 24V 2,7
            [degrees] => STR
        )

    [1] => Array
        (
            [power] => STRIPLED 9,6W 24
            [temp] => STRIPLED 9,6W 24V 3
            [degrees] => STR
        )

    [2] => Array
        (
            [power] => STRIPLED H 6 W 24
            [temp] => STRIPLED H 6 W 24V 4
            [degrees] => STR
        )

    [3] => Array
        (
            [power] => STRIPLED HO 12,3 W 24
            [temp] => STRIPLED HO 12,3 W 24V 3
            [degrees] => STR
        )

    [4] => Array
        (
            [power] => STRIPLED HO 20W 24
            [temp] => STRIPLED HO 20W 24V 2,7
            [degrees] => STR
        )

    [5] => Array
        (
            [power] => STRIPLED 14,4W 24
            [temp] => STRIPLED 14,4W 24V 2,7
            [degrees] => STR
        )

)

誰能給我一個解決方案，以達到預期的效果。

謝謝

Answer 1

我認為使用preg_match可能是提取所需數據的最簡單方法。 根據您的樣本數據，此正則表達式應該起作用：

^\w+\s+([^V]+V)\s+([\d.,]+)K.*?(IP\d+)

這會查找一個單詞，然后是一定數量的非V字符（“電源”部分），然后是K之前的數字（“溫度”部分），最后是一個與IP匹配的字符串，后跟一些數字（ “學位”部分）。 您可以使用以下代碼（使用array_map來處理數組）：

$descriptions = [
    'STRIPLED 9.6W 24V 2.7K 120LED IP20 1CM',
    'STRIPLED 9.6W 24V 3K 120LED IP20 1CM',
    'STRIPLED H 6 W 24V 4K 140 LED IP20 1CM',
    'STRIPLED HO 12.3 W 24V 3K 128 LED IP65 1CM',
    'STRIPLED HO 20W 24V 2.7K 280 LED IP65 1CM',
    'STRIPLED 14.4W 24V 2.7K 180 LED IP65 1 CM',
]; 
$desc = array_map(function ($v) { 
            preg_match('/^\w+\s+([^V]+V)\s+([\d.,]+)K.*?(IP\d+)/', $v, $m);
            array_shift($m); 
            return $m; }, $descriptions);
print_r($desc);

輸出樣本數據：

Array
(
    [0] => Array
        (
            [0] => 9.6W 24V
            [1] => 2.7
            [2] => IP20
        )    
    [1] => Array
        (
            [0] => 9.6W 24V
            [1] => 3
            [2] => IP20
        )    
    [2] => Array
        (
            [0] => H 6 W 24V
            [1] => 4
            [2] => IP20
        )    
    [3] => Array
        (
            [0] => HO 12.3 W 24V
            [1] => 3
            [2] => IP65
        )    
    [4] => Array
        (
            [0] => HO 20W 24V
            [1] => 2.7
            [2] => IP65
        )    
    [5] => Array
        (
            [0] => 14.4W 24V
            [1] => 2.7
            [2] => IP65
        )    
)

3v4l.org上的演示

Answer 2

您也可以嘗試以下操作：

<?php
$arrays = [
    'STRIPLED 9.6W 24V 2.7K 120LED IP20 1CM',
    'STRIPLED 9.6W 24V 3K 120LED IP20 1CM',
    'STRIPLED H 6 W 24V 4K 140 LED IP20 1CM',
    'STRIPLED HO 12.3 W 24V 3K 128 LED IP65 1CM',
    'STRIPLED HO 20W 24V 2.7K 280 LED IP65 1CM',
    'STRIPLED 14.4W 24V 2.7K 180 LED IP65 1 CM'
];

foreach ($arrays as $array){
    //remove STRIPLED
    $result = [];
    $removedStripled = str_replace('STRIPLED ', "", $array);
    $arr = strtok($removedStripled, 'V');
    $result['power'] = $arr.'V';
    $temp = str_replace($arr.'V', "", $removedStripled);
    $arr = strtok($temp, 'K');
    $result['temp'] = $arr;
    preg_match("/IP.*[0-9\s]/", $removedStripled, $match);
    $degrees = explode(' ', $match[0]);
    $result['degress'] = $degrees[0];

    echo "<pre>";
    print_r($result);
    echo "</pre>";
}