Create new txt files from each line of a txt file - php

Question

I have a various txt files like ex: dictionary , each new line is term and then description. pipe delimited.
I have wrote simple script that actually reads each line and then creates (fwrite) new txt file named after term and description as a text of that file.
It works but I'm wondering if there is a better approach, one that takes special characters into account, buffer perhaps, Not sure where to start.
$file = fopen("test.txt", "r") or exit("Unable to open file!");
// Output a line of the file until the end is reached
while(!feof($file))
{
$line = fgets($file);
// making all lowercase - optional
$line = strtolower($line);
// take the first value before delimiter
$var = substr( $line, 0, strpos( $line, '|' ) );
// remove some characters - optional ( depends on a file structure and contents )
$var = str_replace("-", "", $var);
// what txt should be written into a each new file
$txt = str_replace("|", "", $line);
// name the file
$myfile = fopen("$var.txt", "w") or die("Unable to open file!");
// write
fwrite($myfile, $txt);
//close each
fclose($myfile);
}
//close
fclose($file);
UPDATE
$file = fopen("test.txt", "r") or exit("Unable to open file!");
// Output a line of the file until the end is reached
while(!feof($file))
{
$line = fgets($file);
// #sorak fix
$line = fgets($file);
$name = preg_replace('/[^0-9a-zA-Z]/', '',
explode('|', $line)[0]);
// making it lowercase - optional for each
$line = strtolower($line);
$name = strtolower($name);
// what txt should be written into a each new file
$txt = str_replace("|", " ", $line);
// name the file
$myfile = fopen("$name.txt", "w") or die("Unable to open file!");
// write
fwrite($myfile, $txt);
// action echo
echo "$myfile - $name - $txt </br>";
//close each
fclose($myfile);
}
//close
fclose($file);
Since last update contained some duplicate code lines/bugs that caused skipping every other line :) I'm posting new fixed and bit upgraded version.
// this utility is for creating multiple names.txt files from separate lines in original.txt file
// format for original file is: is name|text
// increase memory limit to 32M
ini_set('memory_limit','32M');
// increase 1440 seconds = 24 minutes
ini_set('max_execution_time', 1440);
$file = fopen("original.txt", "r");
if ($file) {
while (($line = fgets($file)) !== false) {
// #sorak fix
//$line = fgets($file);
$name = preg_replace('/[^0-9a-zA-Z]/', '',
explode('|', $line)[0]);
// making it lowercase - optional for each
$line = strtolower($line);
$name = strtolower($name);
$filename = $name . ".txt";
// what text should be written into a each new file
// change pipe separator if needed
$txt = str_replace("|", " ", $line);
// set values
$myfile = fopen($filename, "a") or die("Unable to open file!");
$dir = "/example.com/could_be_dynamic_folder_name";
// write
fwrite($myfile, $txt);
// chmod($dir,0777); optional if creation of dir is from GET/other value and not in the same parent
// action echo
echo "$myfile </br>";
echo "$dir/$filename </br>";
echo "$txt </br></br>";
// chmod
chmod($dir,0777);
chmod("$dir/$filename",0666); // remember to set this script to 0666
}
fclose($file);
} else {
// error echo
echo "something went wrong, error";
}
Works like a charm now. Case closed.

Answer 1

$line = fgets($file);
$name = preg_replace('/[^0-9a-zA-Z]/', '',
explode('|', $line)[0]);
Explode makes splitting up the string easier, and with the [0] we grab the first piece. That preg_replace instruction just removes all characters that aren't letters or numbers.