How do I add two strings together in PHP?

Question

Say you have this array with the following inputs:

$relations["fname"] = 'firstname';
$relations["lname"] = 'lastname';

Now I would like to input the two above values into the following (I know the syntax is incorrect but I would like the firstname and lastname strings to become one string and input into the secondarray):

$secondarray["name"] = $relations["fname"] + $relations["lname"];

The string concatenation operator is ..

deceze
– deceze ♦

2013-05-06 18:22:15 +00:00
Commented May 6, 2013 at 18:22 — deceze
– deceze ♦, Commented May 6, 2013 at 18:22
@deceze that's an answer not a comment

Toby Allen
– Toby Allen

2013-05-06 18:42:55 +00:00
Commented May 6, 2013 at 18:42 — Toby Allen
– Toby Allen, Commented May 6, 2013 at 18:42

Toby Allen · Accepted Answer · 2013-05-06 18:41:48Z

6

$secondarray["name"] = $relations["fname"] + $relations["lname"];

Should be

$secondarray["name"] = $relations["fname"] . $relations["lname"];

The + operator is not overloaded to concatenate strings in PHP.

edited May 6, 2013 at 18:41

Toby Allen

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answered May 6, 2013 at 18:21

christopher

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3 Comments

vascowhite Over a year ago

That would give you "firstnamelastname" instead of "firstname lastname".

Baraa Over a year ago

Thanks perfect! Thanks for the explanation about the + operator!

Baraa Over a year ago

@vascowhite yes you are right but you can do it like this $rel["fname"].' '.$rel["lname"]

raidenace · Accepted Answer · 2013-05-06 18:26:01Z

5

just for the heck of it :-)

$relations["fname"] = 'firstname';
$relations["lname"] = 'lastname';
$secondarray["name"] = implode($relations," ");

answered May 6, 2013 at 18:26

raidenace

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4 Comments

Wolfman Joe Over a year ago

Only if there isn't also $relations["mname"] or $relations["suffix"] or $relations["mphone"] in there somewhere, as well.

Baraa Over a year ago

Thanks I am sure that would work as well, I have more than just the fname and lname in that array though so it would add everything to it I am sure and probably not what I want...Is this better than using . though?

raidenace Over a year ago

@user1748026: It was just meant to illustrate that while strings are concatenated using . operator in PHP, if you do have an array with multiple values that you need to convert into a string, you can use the implode function. It might not be very useful for your current use-case. But if you just consider the title of your question, it will make sense. And hey who knows? next time you have a lengthy array to convert you can use this function instead of all those concatenations :)

Baraa Over a year ago

Thank you very much for the explanation as I might use it in the future!

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