如何使用PHP删除每一行字符串中的最后一个字符？

Question

I would like to remove last character from a word. I have a file with the words:

hello.
world
welcome.
home..
how.
are.
you
any
thing.
else.

I am trying to remove the . from the end of each line. For some reason my code removes the dot only from the last world else but leaves the rest as is.

Here is my code:

$words = file('words.txt');

foreach($words as $word) 
{
    echo substr($word, 0, -1);
    echo "<br />";
}

Does any one know how can i fix this?

Answer 1

That's because last symbol in each line is a linebreak. Do trim before doing substr:

$words = file('words.txt');

foreach($words as $word) 
{
    echo substr(trim($word), 0, -1);   // here we go
    echo "<br />";
}

Or add second argument to file call:

$words = file('words.txt', FILE_IGNORE_NEW_LINES);

foreach($words as $word) 
{
    echo substr($word, 0, -1);
    echo "<br />";
}