PHP substr 函数在 foreach 中没有正确解析

Question

我有一些包含类似格式的文件如下：

Nearest Location:
771 km S 43° E of Quezon City
051 km S 66° E of Surigao City 
007 km S 51° W of Socorro (Surigao Del Norte)
049 km N 70° E of PFZ EAST MINDANAO SEGMENT

我所做的是通过file_get_contents()和explode("\n",...)加载每个文件。所以我用了foreach($rows_location as $row_location)存到$content_location = $row_location;。我把它分成两部分，距离和方位信息，以及忽略第一行的位置，如下所示：

$distance_bearing = substr($content_location,0,18);
$location = substr($content_location, 18);

但问题是它只适用于第一行，所以我将它们分开保存并得到

771 km S 43° E of

对于$distance_bearing和

Quezon City
051 km S 66° E of Surigao City 
007 km S 51° W of Socorro (Surigao Del Norte)
049 km N 70° E of PFZ EAST MINDANAO SEGMENT

对于 $location。

我尝试将每一行转换为 utf8_decode，因为它包含一个度数符号，它只是返回相同但度数替换为 ?。我还检查了 $content_location 是否正确存储行并得到：

Nearest Location:
771 km S 43° E of Quezon City
051 km S 66° E of Surigao City 
007 km S 51° W of Socorro (Surigao Del Norte)
049 km N 70° E of PFZ EAST MINDANAO SEGMENT

所以我猜它存储正确。

我不知道问题出在哪里，所以任何想法都会有所帮助。预先感谢您的帮助。

抱歉各位，我忘了输入所需的输出，它应该是：

771 km S 43° E of
051 km S 66° E of
007 km S 51° W of
049 km N 70° E of

对于$distance_bearing和

Quezon City
Surigao City 
Socorro (Surigao Del Norte)
PFZ EAST MINDANAO SEGMENT

对于 $location。再次感谢！

Answer 1

preg_match_all() 将简单地处理文本块。

代码：(Demo)

$string='Nearest Location:
771 km S 43° E of Quezon City
051 km S 66° E of Surigao City
007 km S 51° W of Socorro (Surigao Del Norte)
049 km N 70° E of PFZ EAST MINDANAO SEGMENT';

if(preg_match_all('/^(.*? of) \K.+/m',$string,$out)){
    list($location,$distance_bearing)=$out;
}
var_export($distance_bearing);
echo "\n\n";
var_export($location);

输出：

array (
  0 => '771 km S 43° E of',
  1 => '051 km S 66° E of',
  2 => '007 km S 51° W of',
  3 => '049 km N 70° E of',
)

array (
  0 => 'Quezon City',
  1 => 'Surigao City',
  2 => 'Socorro (Surigao Del Norte)',
  3 => 'PFZ EAST MINDANAO SEGMENT',
)

图案说明：

/         # start the pattern
^         # match from the start of the line
(.*? of)  # match the leading text upto and including the first occurrence of `of`
 \K.+     # match 1 space, then restart the fullstring match using \K then match the rest of the string
/         # end the pattern
m         # force ^ character to match every line start instead of string start

PHP substr 函数在 foreach 中没有正确解析

PHP substr function does not parse properly in foreach

php

file-get-contents

preg-match-all