PHP Store the new line strings into array

Question

I am working on my PHP script to fetch the strings by using explode so I can store the strings into the array. I have got a problem with my code because when I split the strings to store them into the array, I will get like this:

Array ( [0] => [1] => 0.1 noname.gif [2] => 0.2 what-is-bootstrap.png )

Here is what it should be:

Array ( [0] => 0.1 noname.gif [1] => 0.2 what-is-bootstrap.png)

Here is what it show in the results:

attid: 0.1 filename: noname.gif
attid: 0.2 filename: what-is-bootstrap.png

Here is the code:

<?php

$attached = 'attid: 0.1 filename: noname.gif
attid: 0.2 filename: what-is-bootstrap.png';
$attached_files = explode('attid:', $attached);
$attached_files = str_replace('filename:', '', $attached_files);

?>

I don't know how to store the strings into the array with each key like 0 and 1.

Can you please show me an example how I can store the strings into the array when I split the strings?

Nigel Ren · Accepted Answer · 2019-09-29 17:24:46Z

2

If you add the following line...

$attached_files = array_values(array_map('trim', array_filter($attached_files)));

it will do 3 things.

The array_filter() will remove any empty lines. The reason for the first one is that as you explode() on 'attid:', it will consider there to be a value before the first occurrence - which is blank. You could just do array_shift() to remove the first item, but array_filter() will filter any empty lines.

Secondly - you will find there are trailing new lines etc. So the array_map() with trim will ensure any excess whitespace is removed.

Lastly array_values() will re-index the array to start from 0.

edited Sep 29, 2019 at 17:24

answered Sep 29, 2019 at 17:19

Nigel Ren

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5 Comments

Robert Jones Over a year ago

Thank you very much for this, so in which line I should add the code that come with array_map?

Nigel Ren Over a year ago

Add it anywhere after the line with explode(). Although it would ideally be just after as it would ensure that empty lines are removed before any other processing is done.

Robert Jones Over a year ago

Ok, thank you. I'm getting this Array ( [1] => 0.1 noname.gif [2] => 0.2 what-is-bootstrap.png ), so how I can set the key that start with 0 instead of 1?

Nigel Ren Over a year ago

Added array_values() to re-index the array.

Robert Jones Over a year ago

Thank you very much for this as this is what I am looking for exactly!

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