How can I write to a file line by line or similar?

Question

In the code below, I simply replace all single quotes with double quotes from the original file.

I got most of it done, I just need to write it to a file now.

Should I store all the lines in memory and then write.

Or write line by line?

Which way is best

<?php

    // http://stackoverflow.com/questions/5299471/php-parsing-a-txt-file
    // http://stackoverflow.com/questions/15131619/create-carriage-return-in-php-string
    // http://stackoverflow.com/questions/2424281/how-do-i-replace-double-quotes-with-single-quotes


    $txt_file    = file_get_contents('../js/a_file.js');
    $rows        = explode("\n", $txt_file);
    array_shift($rows);

    foreach($rows as $row => $data)
    {
        $data = str_replace("'", '"', $data);

        // echo "" . $row . " | "  . $data . "\r\n";

        // fwrite($myfile, $txt);

    }

score 1 · Answer 1 · answered Sep 25 '16 at 14:51

1

All you operations are redundant:

$result = file_put_contents(
    '../js/a_file.js',
    str_replace("'", '"', file_get_contents('../js/a_file.js'))
);

answered Sep 25 '16 at 14:51

u_mulder

54,101
5
48
64

Your code works, but can you fix Mario's code to work as well. I think he is missing carriage returns. – mikey balls Sep 25 '16 at 15:03

score 0 · Answer 2 · answered Sep 25 '16 at 14:50

0

you can to write in file with

<?php 
$content = str_replace("'", '"', file_get_contents('../js/a_file.js'));
$myfile = "../js/a_file.js";
file_put_contents($myfile , $content);
?>

answered Sep 25 '16 at 14:50

Tony Markov

35
1
7

score 0 · Answer 3 · answered Sep 25 '16 at 14:53

0

You can use in your code:

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");

For example:

$txt_file    = file_get_contents('../js/a_file.js');
$rows        = explode("\n", $txt_file);
array_shift($rows);

$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");

foreach($rows as $row => $data)
{
    $data = str_replace("'", '"', $data);

    fwrite($myfile, $data );

 }

 fclose($myfile);

answered Sep 25 '16 at 14:53

Mario

420
1
11
23

This does not work. There is something going on with the return characters. – mikey balls Sep 25 '16 at 14:59
1

This is an example you should conform it to your needs. Try `$data = str_replace("'", '"', $data) . "\n";` for newline. – Mario Sep 25 '16 at 15:02

How can I write to a file line by line or similar?

3 Answers3