How to delete multiple spaces in .txt from PHP - php

Question

this is my txt file
I'm adding data from .txt to database with this code:
$dosya=new SplFileObject('veriler.txt');
while(!$dosya->eof())
{
    $satir=$dosya ->fgets();
    list($name,$section,$initialname)=explode(' ',$satir);
     
   $sth= $baglan->prepare('INSERT INTO tablo1 values (NULL,?,?,?,NULL)');
    $sth->bindValue(1,$name,PDO::PARAM_STR);
    $sth->bindValue(2,$section,PDO::PARAM_INT);
    $sth->bindValue(3,$initialname,PDO::PARAM_STR);
    $sth->execute();
     
}
In the .txt if there is a 1 space between the words, my program is working. But as you can see, there are more than one space in my txt file. How can i delete/remove multiple spaces in .txt file? If you can show me in my codes, i will be glad. Thank you.

Answer 1

You can use a regular expression as well to archive the same result.
<?php
// Your code here!
$string = "This has too many spaces";
$result = preg_replace("/\s{2,}/", ' ', $string);
echo($result);
?>
Where /\s{2,}/ means after 2 spaces replace it with a single space also consider that \s also means any of the following characters:
\r
\n
\t
\f
\v
(empty space)
Link: https://paiza.io/projects/M6eSG1zHIUdG5IZEXFZQog
\s stands for “whitespace character”. Again, which characters this actually includes, depends on the regex flavor. In all flavors discussed in this tutorial, it includes [ \t\r\n\f]. That is: \s matches a space, a tab, a carriage return, a line feed, or a form feed.
You can read more about this over here: https://www.regular-expressions.info/shorthand.html

Answer 2

explode() the string, remove array elements with whitespace, and implode():
<?php
$string = "This has too many spaces";
$array = explode(" ", $string);
$array = array_filter($array);
$result = implode(" ", $array);
echo($result);
?>
https://paiza.io/projects/Bi-2H7HiPIklLwXGfYAqCg

Answer 3

#Crisoforo Gaspar solution in your code :
$dosya=new SplFileObject('veriler.txt');
while(!$dosya->eof())
{
$satir=$dosya ->fgets();
$satirWithoutManySpaces = preg_replace("/\s{2,}/", ' ', $satir);
list($name,$section,$initialname)=explode(' ',$satirWithoutManySpaces);
$sth= $baglan->prepare('INSERT INTO tablo1 values (NULL,?,?,?,NULL)');
$sth->bindValue(1,$name,PDO::PARAM_STR);
$sth->bindValue(2,$section,PDO::PARAM_INT);
$sth->bindValue(3,$initialname,PDO::PARAM_STR);
$sth->execute();
}
Hope this help