How To Upgrade PHP to version 5.5 Without Breaking Everything?

I’ve reinstalled the latest distro version 6.12.65. and have there PHP ver 5.38. Last time I tried to upgrade to PHP 5.5 my FreePBX stopped working (Zend and all the other stuff…)

Is there a way to upgrade PHP version without breaking everything?

Freepbx 13 would be less breaky with 5.5 as we removed peardb. Tha said why do you need 5.5?

I like to install VtigerCRM latest version 6.X and it requires 5.5

Michael Adrian
Adorah VOIP Solutions
Tel. +972-58-4412345
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