Question

我在下面有一个段落，我希望它是句号每个结尾的第一个单词。

$paragraph="Microsoft is writing down $6.2 billion of the goodwill within its OSD. It's worth noting that at the time of the acquisition, the company recorded $5.3 billion of goodwill assigned to the OSD, bringing its total carrying balance up to $5.9 billion in September of that year. The goodwill in the OSD had climbed up to $6.4 billion by March of this year, so this accounting charge is wiping out the vast majority of that figure.";

例如，我可以这样做。

$sentences=explode('.',$paragraph);
print_r( $sentences);

并打印

Array ( [0] => Microsoft is writing down $6
        [1] => 2 billion of the goodwill within its OSD 
        [2] => It's worth noting that at the time of the acquisition, the company recorded $5 
        [3] => 3 billion of goodwill assigned to the OSD, bringing its total carrying balance up to $5                            
        [4] => 9 billion in September of that year 
        [5] => The goodwill in the OSD had climbed up to $6 
        [6] => 4 billion by March of this year, so this accounting charge is wiping out the vast majority    of that figure 
        [7] => )

然而，我在徘徊，怎么能从每个阵列得到第一个字。例如，如何创建一个能够获得第一个单词的函数，如下例所示：

的Microsft 2 它的 3 9 该 4

谢谢

Answer 1

对每个句子使用explode()，但请使用空格而不是句号。

$paragraph = "Microsoft is writing down $6.2 billion of the goodwill within its OSD. It's worth noting that at the time of the acquisition, the company recorded $5.3 billion of goodwill assigned to the OSD, bringing its total carrying balance up to $5.9 billion in September of that year. The goodwill in the OSD had climbed up to $6.4 billion by March of this year, so this accounting charge is wiping out the vast majority of that figure.";

$sentences = explode('.', $paragraph);

foreach($sentences as $sentence){
 $words = explode(' ', trim($sentence));
 $first = $words[0];
 echo $first;
}

Answer 2

$paragraph="Microsoft is writing down $6.2 billion of the goodwill within its OSD. It's worth noting that at the time of the acquisition, the company recorded $5.3 billion of goodwill assigned to the OSD, bringing its total carrying balance up to $5.9 billion in September of that year. The goodwill in the OSD had climbed up to $6.4 billion by March of this year, so this accounting charge is wiping out the vast majority of that figure.";

firstWords($paragraph);

function firstWords($paragraph) {
  $sentences = explode('.', $paragraph);

  foreach ($sentences as $sentence) {
   $words = explode(' ', trim($sentence));
   echo $words[0];
  }
}

Php Strings操作（提取第一个单词）

2 个答案: