then go to your server-manager to set php5.4 or higher as default php for your SME, or you will not be able to access to zabbix web gui.
+
then go to your server-manager to set php5.4 or higher as default php for your SME, or you will not be able to access to zabbix web gui, or just issue the following
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config setprop php54 PhpModule enabled #replace here with php55 or php56 if you have other needs
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signal-event php-update
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then you will have to either tweak the default configuration as explain in next step or just issue :