Doc #68430 [Opn->Csd]: Clarify continue page for semicolon issue

Edit report at https://bugs.php.net/bug.php?id=68430&edit=1 ID: 68430 Updated by: salathe@php.net Reported by: slxception at gmail dot com Summary: Clarify continue page for semicolon issue -Status: Open +Status: Closed Type: Documentation Problem Package: Documentation problem PHP Version: Irrelevant -Assigned To: +Assigned To: salathe Block user comment: N Private report: N New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Previous Comments: ------------------------------------------------------------------------ [2014-11-19 15:24:33] salathe@php.net Automatic comment from SVN on behalf of salathe Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=335197 Log: mention 5.4.0 in continue-missing-semicolon example (doc bug #68430) ------------------------------------------------------------------------ [2014-11-16 21:50:15] slxception at gmail dot com Description: ------------ From manual page: http://www.php.net/control-structures.continue The last segment of "Omitting the semicolon" should be changed to correctly address versions. While there may be a changelog after the example, it is obscure, and if future changes come up, it may be missed. Here's the old text: Omitting the semicolon after continue can lead to confusion. Here's an example of what you shouldn't do. <?php for ($i = 0; $i < 5; ++$i) { if ($i == 2) continue print "$i\n"; } ?> One can expect the result to be: 0 1 3 4 but this script will output: 2 because the entire continue print "$i\n"; is evaluated as a single expression, and so print is called only when $i == 2 is true. (The return value of print is passed to continue as the numeric argument.) And here's a suggested change: Omitting the semicolon after continue can lead to confusion. Here's an example of what you shouldn't do. <?php for ($i = 0; $i < 5; ++$i) { if ($i == 2) continue print "$i\n"; } ?> One can expect the result to be: 0 1 3 4 but this script will output in PHP versions before 5.4.0: 2 In PHP versions 5.4.0 or greater, this script will output: Fatal error: 'continue' operator with non-constant operand is no longer supported on line 5 because the entire continue print "$i\n"; is evaluated as a single expression, and so print is called only when $i == 2 is true. (The return value of print is passed to continue as the numeric argument.) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68430&edit=1