Warning: strlen() expects parameter 1 to be string, array given in file… in line

问题

I have this error:

Warning: strlen() expects parameter 1 to be string, array given in /includes/functions/general.php on line 159

Line 159 is:

if ((strlen($value) > 0) && ($key != tep_session_name()) && ($key != 'error') && (!in_array($key, $exclude_array)) && ($key != 'x') && ($key != 'y')) {

Could you help me solving this problem?

回答1:

strlen() only works for strings. From the strlen() documentation:

strlen() returns NULL when executed on arrays, and an E_WARNING level error is emitted.

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If you have an array, use count() to count the elements:

if (count($value) > 0)

来源：https://stackoverflow.com/questions/50143398/warning-strlen-expects-parameter-1-to-be-string-array-given-in-file-in-li