PHP将所有数组值转换为字符串

Question

I have a problem with arrays.

On an old server all the data in arrays were with good types: a string was a string, a bool was a bool and an int was an int.

Now after a server change, all array values are "casting" to string. I cannot compare them with === against my integers because they are "string"

This is how it looks with laravel dd on the old server, versus the new one.

Is there any php setting that causes this that should be fixed?

Answer 1

Looking at the screenshots it looks like the following is happening.

• null value is changed to empty string
• integer values are now strings

Database

• Check the column types in the database are these still int and not varchar ?
• Since PHP 5.3.3 there is a json_encode param called JSON_NUMERIC_CHECK is this used ?

Maybe some framework is updated and using json_encode/json_decode with/without this param. This will result in integer values as strings.

echo json_encode(array('event_id' => '603'));
echo json_encode(array('event_id' => '603'), JSON_NUMERIC_CHECK);

//and the output:

{"event_id":"603"}
{"event_id":603}