Add prefix to array elements then join into a string

Question

I have an array like the one below, which actually collects login and other data from a user submitted form, to be written to a DB. I don't need all the form data, and hence this approach.

$array['a']  = $_POST['userName'];
$array['a'] .= $_POST['passWord'];

Which results in:

$array['a']  = '[email protected]';
$array['a'] .= 'password';

I'm trying to get values from the array as a string, sperated by , or ::, but just cannot figure how to do it.

Using implode gives me a continious string like [email protected]

$comma_separated = implode($array); echo $comma_separated;

Is it somehow possible to get a string like ::[email protected] ::passpword from the array without a for loop.

The approach cannot be changed since it's already in a working site.

I'm using PHP 7.0 on a Windows 10 Machine for testing.

You forgot the glue, php.net/manual/en/function.implode.php. — chris85
– chris85, Commented Jan 15, 2016 at 5:45

devpro · Accepted Answer · 2016-01-15 06:02:56Z

3

There are two issues in your code:

wrong implementation of implode();
Same array index

How to achieve this result?

::[email protected] ::password

You can achieve this result by using this:

// example with your code
$array['a']  = '[email protected]';
$array['b'] = 'password';

echo "::".implode("::",$array);

Result:

::[email protected]::password

Some Optimization:

As you mentioned you are using form with POST method than you can use like that:

echo "::".implode("::",$_POST); //::[email protected]::password

Few Suggestion:

Add error_reporting at the top of the file for getting errors.

Error Reporting

Learn how implode() function works

PHP Implode()

edited Jan 15, 2016 at 6:02

answered Jan 15, 2016 at 5:57

devpro

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Comments

Subash · Accepted Answer · 2016-01-15 05:47:20Z

1

You can use implode. It combines items of array with given parameter and returns a string. Here is the documentation of implode.

Returns a string containing a string representation of all the array elements in the same order, with the glue string between each element.

$array  = ['[email protected]', 'password'];
$string = implode(',', $array);
echo $string;

answered Jan 15, 2016 at 5:47

Subash

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Comments

Basheer Kharoti · Accepted Answer · 2016-01-15 05:43:23Z

0

Try it this way

$array[]  = '[email protected]';
$array[] = 'password'
echo '::'.implode('::', $array);

output

::[email protected]::password

answered Jan 15, 2016 at 5:43

Basheer Kharoti

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Comments

Chetan Naik · Accepted Answer · 2016-01-15 05:46:55Z

0

Try this:

echo ":: ".implode("::",$a);

edited Jan 15, 2016 at 5:46

answered Jan 15, 2016 at 5:41

Chetan Naik

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Comments

Jalpa · Accepted Answer · 2016-01-15 05:48:58Z

0

Please try to use implode like this.

$array[]  = $_POST['userName'];
$array[]  = $_POST['passWord'];

echo implode(',',$array);

answered Jan 15, 2016 at 5:48

Jalpa

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Comments

mickmackusa · Accepted Answer · 2024-09-28 12:47:18Z

0

Is it somehow possible to get a string like ::[email protected] ::passpword

Yes, prepend :: to each element, then implode with a single space.

Code: (Demo)

$array['a']  = '[email protected]';
$array['b'] = 'password';

echo implode(' ', substr_replace($array, '::', 0, 0));

Output:

::[email protected] ::password

answered Sep 28, 2024 at 12:47

mickmackusa♦

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