- CUSTOM UPDATING DOCUMENT PROPERTIES WORD 2016 ABSTRACT ARCHIVE
- CUSTOM UPDATING DOCUMENT PROPERTIES WORD 2016 ABSTRACT CODE
This means that changes to the array made during iteration will not affect the values that are iterated." When used in the default by-value mode, foreach will now operate on a copy of the array being iterated rather than the array itself. "foreach by-value operates on a copy of the array
I would have preferred the new DivisionByZeroError exception to be thrown in all cases, for consistency and to enforce good programming practices. What does bother me is that division by zero is handled in two different ways depending on the operator. We do the best we can within the limitations of floating point values, which are really just good approximations of the actual numbers being represented. In other words, 0 is not only representative of an actual 0, but also a very small number which float cannot represent correctly (underflow), and INF does not only represent infinity, but also a very big number which float cannot represent correctly (overflow). In a better computer, however, $y would not have the value 0 (it would be 1e-30) and $z would not have the value INF (it would be 1e30). So, for example, if you have values like:īecause $y will have underflowed to 0, the division operation will throw the division by zero warning, and $z will be set to INF. a value which is too small to be represented as a float. A value of 0 as a divisor usually occurs due to underflow, i.e. The reason is that programmers don't usually divide by 0 on purpose. Used to emulate the previous behaviour if required:Īlthough $x/0 is technically not infinity in a purely mathematical sense, when you understand why the IEEE float includes a value for infinity, and returns infinity in this case, it makes sense that PHP would agree with this.
CUSTOM UPDATING DOCUMENT PROPERTIES WORD 2016 ABSTRACT CODE
This will make the code both forwards compatible with PHPħ.x and backwards compatible with PHP 5.x. Old and new evaluation of indirect expressions ExpressionĬode that used the old right-to-left evaluation order must be rewritten toĮxplicitly use that evaluation order with curly braces (see the above
The table below shows how the order of evaluation has Indirect access to variables, properties, and methods will now beĮvaluated strictly in left-to-right order, as opposed to the previous mix
CUSTOM UPDATING DOCUMENT PROPERTIES WORD 2016 ABSTRACT ARCHIVE
Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto searchĬhanges to the handling of indirect variables, properties, and methods
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