如何使用php从字符串中找到要创建数组的特定字符
如何使用php从字符串中找到要创建数组的特定字符
提问于 2018-11-23 04:53:32
我有一些绳子如下：
'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',我试图找到一些字符并创建类似的数组
预期结果：
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
)
)但我无法找到正确的解决方案。
解释: STRIPLED 9.6W 24V 2.7K 120 1CM IP20 1cm
这里，W&V表示功率，K表示温度，IP表示程度。
我试过的密码：
<?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;
?>我看到了这样的产出：
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
)
)有人能给我一个解决方案来创造我的预期结果吗。
谢谢
回答 2
Stack Overflow用户
回答已采纳
发布于 2018-11-23 05:30:34
我认为使用preg_match可能是提取所需数据的最简单方法。根据您的示例数据，此正则表达式应该工作：
^\w+\s+([^V]+V)\s+([\d.,]+)K.*?(IP\d+)这将查找一个单词，后面跟着一些非V字符( "power“组件)，然后是K前面的一个数字(”温度“组件)，最后是一个与IP匹配的字符串，后面跟着一定数量的数字(”度数“组件)。您可以使用以下代码(使用array_map)来处理数组：
$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);样本数据的输出：
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
)
)Stack Overflow用户
发布于 2018-11-23 10:20:55
您也可以尝试这样做：
<?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>";
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/53440819
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