PHP在每个新单词的末尾添加字符

Question

我有一个由空格分隔的单词串（除了最后一个单词），我想知道是否有办法在每个新单词的末尾添加一个字符。例如：

$string = "this is a short string of words"

会变成

$string = "this; is; a; short; string; of; words;"

由于

Answer 1

$str = 'lorem ipsum';  
$str_modified = str_replace(' ','; ',trim($str)).';';

Answer 2

Explode和Implode：

implode("; ", explode(" ", $string)).";"; 

Answer 3

您可以像这样使用preg_replace()：

$string = "this is a short string of words";
echo preg_replace('~(\w+)~', '$1;',$string);

// output: this; is; a; short; string; of; words;