Prevent json_encode to encode empty strings as null

Question

Is it possible for the PHP json_encode function do not convert empty string values to null?

UPDATE
I can not replicate this behaviour in clear conditions, and looks like it's already a default for this function.

So far as I can see it doesn't convert empty string to null. Do you have an example??? — AbraCadaver
– AbraCadaver, Commented Apr 14, 2016 at 17:28
You're better to show your code (which you should do by default here on Stack Overflow). — David Ferenczy Rogožan
– David Ferenczy Rogožan, Commented Apr 14, 2016 at 17:33
one guy's null is another guy's empty string ? show the code please. — YvesLeBorg
– YvesLeBorg, Commented Apr 14, 2016 at 17:34
Yep, @DawidFerenczy without it looks like opinions divided )) — vatavale
– vatavale, Commented Apr 14, 2016 at 17:37

ceejayoz · Accepted Answer · 2016-04-14 17:31:34Z

3

This is already the default behavior.

json_encode(['test' => '']);

generates:

{"test":""}

answered Apr 14, 2016 at 17:31

ceejayoz

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Agu V · Accepted Answer · 2016-04-14 17:29:23Z

1

No that i know of, but you could do this:

array_walk_recursive($value, function (&$item, $key) {
    $item = null === $item ? '' : $item;
});

answered Apr 14, 2016 at 17:29

Agu V

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1 Comment

vatavale Over a year ago

Yes I also saw this kind of code here developertipsandtricks.blogspot.com/2013/10/… and it looks like eclipse of the mind, because I can't replicate this now in clear conditions )) So thank you but... Should I close this question?

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