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| -rw-r--r-- | UPGRADING | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -323,6 +323,25 @@ Relevant RFCs: Other language changes ---------------------- +* The yield language construct no longer requires parentheses when used in an + expression context. It is now a right-associative operator with precedence + between the "print" and "=>" operators. This can result in different behavior + in some cases, for example: + + echo yield -1; + // Was previously interpreted as + echo (yield) - 1; + // And is now interpreted as + echo yield (-1); + + yield $foo or die; + // Was previously interpreted as + yield ($foo or die); + // And is now interpreted as + (yield $foo) or die; + + Such cases can always be resolved by adding additional parentheses. + . Removed ASP (<%) and script (<script language=php>) tags. (RFC: https://wiki.php.net/rfc/remove_alternative_php_tags) . Removed support for assigning the result of new by reference. |