Illegal string offset warning on setting PHP array element

Question

I would try to setting an element of an array with the following code:

if (empty($table['keys'])){
    $table['keys']=array(
        'primary_key'=>array(
            'id'
        )
    );
}

But I get the 'illegal string offset...' warning. I also tried another array key, in case of the 'keys' index would be reserved keyword, but it makes the same error.

Does not give me any error at all... see eval.in/511929

syck
– syck

2016-02-02 14:27:13 +00:00
Commented Feb 2, 2016 at 14:27 — syck
– syck, Commented Feb 2, 2016 at 14:27

Volker Schukai · Accepted Answer · 2016-02-02 14:42:43Z

1

The variable $table appears to be a string. try this before your if-statement:

if(!is_array($table)) $table = [];

or if the change will only take place if $ tablet is an array

if(is_array($table)) {
  if(!array_key_exists('keys', $table)||empty($table['keys'])) {
    $table['keys']=array(
        'primary_key'=>array(
            'id'
        )
    );
  }
}

edited Feb 2, 2016 at 14:42

answered Feb 2, 2016 at 14:29

Volker Schukai

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1 Comment

kukko Over a year ago

Yeah, the variable at some modules is string, not an array. This caused the problem. Thanks for your help! :)

Justin Howard · Accepted Answer · 2016-02-02 18:23:21Z

0

Try it like this

if( empty($table['keys']) ){
 $table['keys'] = [
   'primary_key' => [
      'id' => ""
    ]
 ];
}

edited Feb 2, 2016 at 18:23

Justin Howard

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answered Feb 2, 2016 at 14:24

Siddhartha Chowdhury

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