Get to display last URL characters

Question

I need to take the last 14 characters of a relation of urls inside a . txt

$url = file_get_contents('https://www.site.com.br/relacao.txt');

In relation.txt I have:

www.site.com.br/aluno/s/francisco-augusto/11111111111111
www.site.com.br/aluno/s/francisco-fernandes/11111111111112
www.site.com.br/aluno/s/francisco-ocario/11111111111113
www.site.com.br/aluno/s/giselia-augusto/11111111111114
www.site.com.br/aluno/s/giselia-fernandes/11111111111115

Etc.. (várias outras)

And I would like to put it as follows: (only with the latest figures)

11111111111111
11111111111112
11111111111113
11111111111114
11111111111115

Etc...

I’ve tried so many ways.

$url = preg_replace("/[^0-9]/", " ", $url);

But the result is as follows:

11111111111111 11111111111112 1111111111113 11111111111114 etc.

I need each number on one line.

Can someone help me?

Answer 1

Edit

As seen, your result is not as written in the question as you are doing wrong reading the file.

Try it this way:

$arq = file("url.txt");
foreach($arq as $linha){
   echo buscaFinal($linha);
   echo '<br>';
}

function buscaFinal($linha) {
   $var = substr($linha,(strlen($linha)-14),strlen($linha));
   return $var;
}

---

You can use the substr with strlen:

$txt = "www.site.com.br/aluno/s/giselia-augusto/11111111111114";
$var = substr($txt,(strlen($txt)-14),strlen($txt));
echo $var;

Exit: 11111111111114

(Obs: you put 12 characters, but in the example has 14)

To give the line break, you can use the php_eol, echo <br>, echo '\n', it depends on whether to print to the file, on the page, etc

function buscaFinal($linha) {
  $var = substr($linha,(strlen($linha)-14),strlen($linha));
  echo $var;
  echo '<br>';
}

---

Other form standard case the bars "/"

You can use the explode:

$txt = "www.site.com.br/aluno/s/giselia-fernandes/11111111111115";
$var = explode("/", $txt);
echo $var[4];

Exit: 11111111111115

---

Documentations:

explode

replace

strlen

Predefined Constants