By no means could this appendix replace the value of the PHP manual, but the tables and information listed here might save you a trip online to view it. In this section you’ll find lists of
Operators, comparators, and their precedence
Date- and time-formatting parameters and functions
Regular expression characters and classes
Many of PHP’s operators and comparators (symbols used to make comparisons) are self-evident. Still, to be explicit, I’ve listed most of them in Table B.1. Along with these, don’t forget about the variations on the assignment operators: .=, +=, -=, *=, and /=.
|=||is assigned the value ...|