I am currently using OJS 2.4.8-4 and need to upgrade to OJS 3. Is there a guide for the upgrade?
Right now, whenever I turn on PHP 7 on OJS 2.4.8-4, I get a blank page. I am getting this error from the log file. Can someone please tell me how to fix this?
PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Application has a deprecated constructor in /public_html/classes/core/Application.inc.php on line 36
[22-May-2019 07:26:22 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; PKPApplication has a deprecated constructor in /public_html/lib/pkp/classes/core/PKPApplication.inc.php on line 39
[22-May-2019 07:26:22 UTC] PHP Deprecated: Non-static method PKPApplication::defineExposedConstant() should not be called statically in /public_html/lib/pkp/classes/core/PKPApplication.inc.php on line 545
[22-May-2019 07:26:22 UTC] PHP Deprecated: Non-static method PKPApplication::getExposedConstants() should not be called statically in /public_html/lib/pkp/classes/core/PKPApplication.inc.php on line 513
[22-May-2019 07:26:23 UTC] PHP Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /public_html/lib/pkp/lib/adodb/drivers/adodb-mysql.inc.php:354