Creating a string from a Php array and writing it to a text file

Question

I have an array like this:

Array
(
    [0] => firstname1,
    [1] => lastname1,
    [2] => firstname2,
    [3] => lastname2,
    [4] => firstname3,
    [5] => lastname3
)

Now I want to create a text file containing this content:

firstname1|lastname1#firstname2|lastname2#firstname3|lastname3#

How can I do that?

@Fred-ii- I just want to know, how can I create a `.txt` file using *PHP*. Just that, I will create a regex of my array later — stack, Dec 16 '15 at 23:16
What relevance is the `#` ? And as mentioned by @Fred-ii- what have you tried so far? What didnt work? — Steve, Dec 16 '15 at 23:17
You should check out `file_put_contents()` for file creation and insertion and `implode()` to convert the array into a string. http://php.net/manual/en/function.implode.php — BryanLavinParmenter, Dec 16 '15 at 23:19
Google'd (for you) *"how to create a .txt file with php"* - http://stackoverflow.com/q/9265274/ and http://www.tizag.com/phpT/filecreate.php and http://www.tizag.com/phpT/filewrite.php and http://stackoverflow.com/q/14998961/ amongst many others. — Funk Forty Niner, Dec 16 '15 at 23:19
*hah!* someone even put in an answer using the links from above, *rich!* - Had I known, I'd of done the same ;-) but I'm not like that. — Funk Forty Niner, Dec 16 '15 at 23:29

score 1 · Answer 1 · edited May 23 '17 at 11:44

1

$array = array(
    'firstname1',
    'lastname1',
    'firstname2',
    'lastname2',
    'firstname3',
    'lastname3'
);
$str = implode('@', $array) . '@';
$str = preg_replace('/(.+?)@(.+?)@/', '$1|$2#', $str);
file_put_contents('/tmp/file.txt', $str);

Edit inspired by: https://stackoverflow.com/a/16687155/3392762, and what came before.

edited May 23 '17 at 11:44

Community

1
1

answered Dec 16 '15 at 23:28

Juakali92

1,155
8
20

This is about the only answer (so far) that makes any sense. – Funk Forty Niner Dec 16 '15 at 23:31
it isn't actually right as i didn't read the output correctly which is my fault. I'll edit it shortly – Juakali92 Dec 16 '15 at 23:32
No problemo. I wasn't criticizing it, do what you can ;-) – Funk Forty Niner Dec 16 '15 at 23:33
@Fred-ii- I have a question of *You*, you know the answer ... is it not? So why you don't write an answer under my question? really why? – stack Dec 16 '15 at 23:34
1

@stack so I'm the one who gets "shot at", *sigh*. Double rich. – Funk Forty Niner Dec 16 '15 at 23:35
@stack by the way, that answer just here, isn't the one I was referring too, I was referring to this one http://stackoverflow.com/a/34324050/ at least this guy `user3697474` made an "effort". – Funk Forty Niner Dec 16 '15 at 23:37
progrock has the right answer. You need to loop through the array and create a string which can be then parsed into a text file. There's no need to edit my answer when one is available. – Juakali92 Dec 16 '15 at 23:39
@Fred-ii- Yes I did what I needed according to your links...! But still I believe you are a weird person ..! Also I like your avatar ;-) – stack Dec 16 '15 at 23:42
Thanks @user3697474 +1 – stack Dec 16 '15 at 23:44

Progrock · Accepted Answer · 2020-03-05T17:54:11.160

You can iterate through the array in pairs, contcatenating with your chosen characters, to build a string, and then write it to a file with file_put_contents.

<?php
$names = array(
    'firstname1',
    'lastname1',
    'firstname2',
    'lastname2',
    'firstname3',
    'lastname3'
);

for(
    $i = 0, $n = count($names), $str = '';
    $i < $n;
    $i += 2
)
{
    $str .= $names[$i] . '|' . $names[$i+1] . '#';
}
file_put_contents('/tmp/names.txt', $str);

Or to build the string we could chunk the original array into pairs:

$str = '';
foreach(array_chunk($names, 2) as list($first, $second))
    $str .= $first . '|' . $second . '#';

Creating a string from a Php array and writing it to a text file

2 Answers2