PHP 7 Compatibility

Hi Support, Please check the PHP 7 compatibility issues found below. May not be severe, better to take care of them now..

wp-content/plugins/postman-smtp/Postman/Postman-Mail/Zend-1.12.10/Validate/NotEmpty.php
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FOUND 4 ERRORS AFFECTING 4 LINES
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37 | ERROR | Function name, class name, namespace name or constant name can not be reserved keyword ‘FLOAT’ (since version 7.0)
38 | ERROR | Function name, class name, namespace name or constant name can not be reserved keyword ‘STRING’ (since version 7.0)
41 | ERROR | Function name, class name, namespace name or constant name can not be reserved keyword ‘NULL’ (since version 7.0)
44 | ERROR | Function name, class name, namespace name or constant name can not be reserved keyword ‘OBJECT’ (since version 7.0)
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Also

wp-content/plugins/postman-smtp/Postman/Postman-Connectivity-Test/registered-domain-libs-master/generateEffectiveTLDs.php
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FOUND 2 ERRORS AFFECTING 2 LINES
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153 | ERROR | The use of function split is discouraged from PHP version 5.3 and forbidden from PHP version 7.0; use preg_split instead
179 | ERROR | The use of function split is discouraged from PHP version 5.3 and forbidden from PHP version 7.0; use preg_split instead
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