php function json_encode returns false?

Question

I got following message from the developer:

When the data array is too long, then php function json_encode returns false.

The server uses php 5.6.21, apache 2.2.15. I am not sure there is a server configuration or something that prevents this happening from server side.

alzee · Accepted Answer · 2016-08-01 14:29:39Z

3

He may mean too deep rather than too long.

The default maximum depth of nested arrays for json_encode is 512. You can override this with the 3rd parameter to json_encode; e.g. $json = json_encode($thing, 0, 1024); to set it to 1024.

answered Aug 1, 2016 at 14:29

alzee

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5 Comments

user3796291 Over a year ago

Sorry. Can you tell me where to put that parameter such like php.ini?

alzee Over a year ago

I did tell you. It's the 3rd parameter (argument) to the json_encode() function; the last one. The default is 512, if you do not specify a value.

user3796291 Over a year ago

Sorry. I am not an expert on programming so it seems like it should be done in scripts not server configuration. Is that right?

alzee Over a year ago

It is a change to the PHP code, where the json_encode() function is being called. This is not expert level, it's basic. The developer you mentioned should be able to fix it, if you can't.

user3796291 Over a year ago

They said their script doesn't have a depth more than 5 so it's not a valid point to extend to 1024. What else I should look at from server side?

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