exist Function

Returns "true" if the URL query string argument exists.

Summary

ElementFunction
ReturnsBoolean

Arguments

nameString[required] The name of the argument to search for.

Example

$this->exist('id');
CodeMessageLineFile
2count(): Parameter must be an array or an object that implements Countable224/home2/ptorg/public_html/pagetype/content/pages/en/docml.viewer.php