PHP converting Strings to Arrays back to Strings

Question

I am pulling data from a query that has the following output: 1 2 3 5

I am converting it into an array like so: $string = explode("\n", $result);

I know have an array displaying the following: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 )

now I am trying to put that array back into a single string having a | seperator

    $test = "";    
    foreach($string as $key)
    {
    $test .= $key." | ";
    }

however, I am getting the ouput of test:

     | 5 |

can somone explain why its not showing what I expect it to show and another way how to produce a single string with a | seperator?

thanks

implode() is what you want; it does exactly what you're asking for. If you're not seeing that then there's something else going on with your array that you haven't told us. — Spudley
– Spudley, Commented May 17, 2013 at 15:37

bobwienholt · Accepted Answer · 2013-05-17 15:17:08Z

7

Try this:

implode("|", $string)

answered May 17, 2013 at 15:17

bobwienholt

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2 Comments

bobwienholt Over a year ago

The first element of your array must be an empty string, or a space or something. What does print_r($string) show?

Biotox Over a year ago

Just add spaces to the " | " and use trim() to take the leading and trailing space off.

Useless Intern · Accepted Answer · 2013-05-17 15:30:16Z

7

$string = implode(" | ", $result);

edited May 17, 2013 at 15:30

answered May 17, 2013 at 15:17

Useless Intern

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Comments

bozdoz · Accepted Answer · 2013-05-17 15:17:17Z

5

I would think implode would be what you're looking for.

Also, to comment on why your code is not working, I'm not sure. Check out this example on ideone.com: http://ideone.com/rH3qbr. I copied your code and it seems to be working, I think, as you would expect it to.

<?php
$result = '1 2 3 4 5';
$string = explode(" ", $result);
$test = "";
foreach($string as $key) {
    $test .= $key." | ";
}
echo $test; // outputs 1 | 2 | 3 | 4 | 5 | 
?>

answered May 17, 2013 at 15:17

bozdoz

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2 Comments

user1873432 Over a year ago

bozdoz, instead of spaces, they are actually a new line "\n" please try that.

bozdoz Over a year ago

The link has been updated, but it's the same result. @user1873432

Community · Accepted Answer · 2023-11-17 19:39:04Z

2

To do this, you need the joinfunction: https://www.php.net/join

edited Nov 17, 2023 at 19:39

CommunityBot

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answered May 17, 2013 at 15:17

Henrique Barcelos

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Comments

Deepak Mallah · Accepted Answer · 2013-05-17 15:21:14Z

2

if $string is the array than you can use implode to convert it into string Try this

$new_string = implode("|", $string);

answered May 17, 2013 at 15:21

Deepak Mallah

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1 Comment

Deepak Mallah Over a year ago

now I am trying to put that array back into a single string having a | seperator This is what you asked, you mentioned separator

user1873432 · Accepted Answer · 2013-05-17 15:38:39Z

1

The answer was explode("\r\n", $result) but thanks for showing me the implode function everyone

answered May 17, 2013 at 15:38

user1873432

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