How to avoid Illegal characters found in URL error with curl?

Question

PHP

Hello everyone, I've run into a problem.
Wanted to create a way to send urls directly from a text file to curl .
But there was an error Illegal characters found in URL . How to fix?
Here is the code

<?php
echo '<form action="" method="post" >';
echo 'Сайт';
echo '<input class="url" type="text" name="urlsite" size="10" value="';
?>

<?php
$show_info = file('mes.txt');
echo $show_info[0];
?>

<?php
echo '" />';
echo 'Описание';
echo '<input class="text" type="text" name="text" size="10" value="';
?>

<?php
echo $show_info[1];
?>

<?php
echo '" />';
echo '<input type="submit" name="Button" value="добавить" />';
echo '</form>';


if (!empty($_POST)) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $show_info[2]);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, array(
        'urlsite' => $_POST['urlsite'],
        'text' => $_POST['text'],
        'Button' => 'get'
    ));
    curl_setopt($ch, CURLOPT_USERAGENT, 'MSIE 5');
    curl_setopt($ch, CURLOPT_REFERER, "http://ya.ru");
    $res = curl_exec($ch);
    if (!$res) {
        $error = curl_error($ch) . '(' . curl_errno($ch) . ')';
        echo $error;
    } else {
        if (preg_match("/\<table class\='yaResultat'(.+)\<\/table\>/isU", $res, $found)) {
            $content = $found[0];
            echo $content;
        } else {
            echo '<form></form>';
    }
  }
  curl_close($ch);
}

if (!empty($_POST)) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $show_info[3]);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, array(
        'urlsite' => $_POST['urlsite'],
        'text' => $_POST['text'],
        'Button' => 'get'
    ));
    curl_setopt($ch, CURLOPT_USERAGENT, 'MSIE 5');
    curl_setopt($ch, CURLOPT_REFERER, "http://ya.ru");
    $res = curl_exec($ch);
    if (!$res) {
        $error = curl_error($ch) . '(' . curl_errno($ch) . ')';
        echo $error;
    } else {
        if (preg_match("/\<table class\='yaResultat'(.+)\<\/table\>/isU", $res, $found)) {
            $content = $found[0];
            echo $content;
        } else {
            echo '<form></form>';
    }
  }
  curl_close($ch);
}
?>

links are stored inside the txt file
Looks like this
sire.ru
site2.ru
And with the help of this command the code from the first line is read
<?php
echo $show_info[0];
?>
from the second line
<?php
echo $show_info[1];
?>
The bottom line is that when there is only one link in a text file, everything goes well ... And when there are 2 or 3, then there are already errors. Moreover, they are written from a new line.
The following error pops up
Illegal characters found in URL
How to fix it please help?

Answer 1

trim()