#47369 [Opn->Csd]: use of {self::$} in a string always triggers Notice: Undefined variable:

ID: 47369 Updated by: torben@php.net Reported By: d4n at digitalanalogue dot org -Status: Open +Status: Closed Bug Type: Documentation problem Operating System: CentOS 5 PHP Version: Irrelevant 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: ------------------------------------------------------------------------ [2009-09-05 06:39:02] svn@php.net Automatic comment from SVN on behalf of torben Revision: http://svn.php.net/viewvc/?view=revision&revision=288077 Log: Noted that the values of static class variables and class constants may be accessed as the names of variables in the local scope, but that single-curly-brace syntax will not work with function or method calls or static class variables or class constants. Addresses bug #47369. ------------------------------------------------------------------------ [2009-02-16 15:17:08] smlerman at gmail dot com If I remember correctly, the parser only looks for {$ to do variable interpolation, which means you can't use things like constants or static properties. ------------------------------------------------------------------------ [2009-02-12 13:26:42] d4n at digitalanalogue dot org Description: ------------ Can you update the strings document to explain why you cannot use self::$var in any string, or if you can what php version it works in. I do not know if this is a bug, or if it is my php version, but I can't understand why I can access the var and echo it out yet when I put it in a string using escaped methods it is ignored and throws a notice saying undefined when it clearly is! Thanks Dan Reproduce code: --------------- class user { private static $table = "foo"; public function user() { //blah... } public static function test() { $str = "table = ". self::$table . "<br/>"; echo $str; // Outputs: table = foo $str = "table = {self::$table} <br/>"; echo $str; // Outputs: // Notice: Undefined variable: table in /*** on line *** $str = '{self::$table}' . "<br/>"; echo $str; // Outputs: table = {self::} $str = <<<EOD table = self::$table EOD; /* Outputs: Notice: Undefined variable: table in /*** on line *** table = self:: */ echo $str; } } Expected result: ---------------- table = foo table = foo table = {self::$table} table = foo Actual result: -------------- table = foo Notice: Undefined variable: table in /*** on line *** table = {self::} table = {self::$table} // correct! Notice: Undefined variable: table in /*** on line *** table = self:: ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47369&edit=1