issue and proposal ;) php7 : Delimiter must not be alphanumeric or backslash and preg_match or preg_replace

[fab-kaz]

Hi,

I had to set delimiters / for all the preg_match or preg_replace to avoid the error "Delimiter must not be alphanumeric or backslash".

It's strange because these delimiter were present for some preg_match or preg_replace but not for all of them.

For example: instead of
preg_match(" character varying", $line), i have now preg_match("/ character varying/", $line)