Fix fatal error: Uncaught Error: [] operator not supported for strings in wordpress site

The error message you’re encountering, “fatal error: Uncaught Error: [] operator not supported for strings,” typically occurs in PHP when you attempt to use the array access operator ([]) on a string variable. In most cases, this indicates that you are trying to access a specific character or element of a string as if it were an array, but PHP does not support this operation.

Here are a few common scenarios that could cause this error in a WordPress site:

1. Incorrect usage of array access on a string variable:

$string = "Hello, World!";
$character = $string[0]; // This line will produce the error.

2. Plugin or theme code issue: The error may also be caused by a faulty plugin or theme code that tries to use the array access operator on a string improperly.

To troubleshoot and fix the issue, you should follow these steps:

1. Identify the exact file and line where the error is occurring.
2. Check if the variable being used as an array is indeed a string and not an array or other data type.
3. Double-check any custom code you or your developers have written to ensure that array access is not used on strings.

To pinpoint the source of the error, you can enable WordPress debugging. Add the following lines to your site’s wp-config.php file, just before the line that says “That’s all, stop editing! Happy blogging.”

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_DISPLAY', false );
define( 'WP_DEBUG_LOG', true );

With these settings enabled, WordPress will log errors in the wp-content/debug.log file. Once you reproduce the error, check the debug log for more detailed information about the issue.

Remember to turn off debugging after resolving the issue by changing WP_DEBUG to false.

If you are unable to identify the problem or need further assistance, provide the code snippet or relevant details about your WordPress setup, and I’ll be happy to help you troubleshoot the issue.