How to convert an array to string with index

Question

I would like to convert an Array like this:

 array ( [1_1] => 1 [1_2] => 2 [1_3] => 3 [1_4] => 4 [1_5] => 5 )

to an string like this:

"1_1-1/1_2-2/1_3-3/1_4-4/1_5-5"

how can I do it?

I need the Index and the values in my MySQL-Databse.

I tryed implode() but this is the result:

1/2/3/4/5

thank you

Achrome · Accepted Answer · 2013-07-04 22:38:24Z

1

$out = "";
foreach($arr as $k => $v) {
    $out .= "$k-$v/";
}
$out = substr($out, 0, -1); //this line will remove the extra '/'

answered Jul 4, 2013 at 22:38

Achrome

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Comments

WooDzu · Accepted Answer · 2013-07-04 22:42:31Z

1

PHP < 5.5

It's better to store all these values in an associative array and then implode them

$final = array();
foreach($array as $key => $val)
{
    $final[] = $key.'-'.$val;
}
$final = implode('/', $final);

PHP = 5.5

You may want to use generators to yeld these values assuming they are regular: See: http://php.net/manual/en/language.generators.overview.php

answered Jul 4, 2013 at 22:42

WooDzu

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user2287527 · Accepted Answer · 2013-07-04 22:50:43Z

1

You can use http_build_query() to do that.

Try:

     echo http_build_query($array, '', '/');

answered Jul 4, 2013 at 22:50

user2287527