CODEWITHSUNDEEP
php
Maarten Hartman
Maarten Hartman

Reputation: 1629

when using variable: Fatal error: Cannot use string offset as an array

The following piece of code:

$field = 'field_total_comments_added';
$current_user_count = $user_data->$field['und']['0']['value'];

returns an error: Fatal error: Cannot use string offset as an array

if I just use:

$current_user_count = $user_data->field_total_comments_added['und']['0']['value'];

the code works just fine. In order to use some custom functionality I have to use the variable displayed in the first code block. How can I solve this?

Please tell me if the problem isn't clear to you.

Thanks in advance for your assistance

Upvotes: 2

Views: 293

Answers (2)

mario
mario

Reputation: 145482

You can use this common workaround:

$current_user_count = $user_data->{$field}['und']['0']['value'];

Which basically forces the variable property name to have precedence over the array access operator.

Upvotes: 7

meustrus
meustrus

Reputation: 7315

Try:

$field = 'field_total_comments_added';
$current_user_count = ($user_data->$field)['und']['0']['value'];

It might only work for PHP 5.4. For earlier versions, also try:

$field = 'field_total_comments_added';
$item = $user_data->$field;
$current_user_count = $item['und']['0']['value'];

Upvotes: 1

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