PHP Fatal error: Uncaught Error: [] operator not supported for strings

Question

I realise that this question has been asked a number of times but I am yet to find a solution to this problem.

I am using pChart (pData v2.1.4). It works fine on the hosting site which is running php v5.6.30 but I getting a fatal error with the same code on XAMMP which is running php v7.2.5.

The error refers to this line in pData: (NOTE: pData is a class written by a third party and so not my code)

function convertToArray($Value)
    { $Values = ""; $Values[] = $Value; return($Values); }

Any suggestions as to how to resolve the problem? I have tried declaring $Values as an array earlier in the code but this seemed to cause more errors.

Also, is this php version related and an error that I am going to start getting if my hosting site moves on to a newer version php?

Felippe Duarte · Accepted Answer · 2018-08-20 17:42:46Z

1

You have declared $Values as string:

$Values = "";

Fix replacing with array:

function convertToArray($Value)
{
    $Values = [];
    $Values[] = $Value;
    return $Values;
}

But, in my opinion, there is no reason to use this function. In your code, just define an array of the same variable with:

$Value = [$Value];

It will do the same as your function.

answered Aug 20, 2018 at 17:42

Felippe Duarte

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Comments

zen · Accepted Answer · 2018-08-20 17:47:20Z

1

You can't convert string to array ($Values = ""; $Values[] = $Value;), so right variant:

function convertToArray($value) {
    return [$value];
}

answered Aug 20, 2018 at 17:47

zen

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Comments

berramou · Accepted Answer · 2018-08-20 19:18:30Z

1

Values should declared as Array Try this.

function convertToArray($Value){
 $Values = [];
 $Values[] = $Value;
 return $Values;
}

answered Aug 20, 2018 at 19:18

berramou

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Comments

Suriya Prakash.M · Accepted Answer · 2018-08-20 17:44:45Z

0

Try this,

function convertToArray($Value){
   $Values = array(); // initialize 

   if ( isset($Value) ) $Values[] = $Value; 

   return($Values); 
}

Let me know if it works or not.

answered Aug 20, 2018 at 17:44

Suriya Prakash.M

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