- Add possibility to call static class members using variables (Etienne Kneuss)

NEWS

@@ -37,6 +37,8 @@ PHP                                                                        NEWS
 - Added PCRE_VERSION constant. (Tony)
 - Added ReflectionExtension::info() function to print the phpinfo() block for
   an extension. (Johannes)
+- Added possibility to call static class members using variables. (Etienne
+  Kneuss)
 
 - Implemented FR #41884 (ReflectionClass::getDefaultProperties() does not handle 
   static attributes). (Tony)

Zend/zend_language_parser.y

@@ -630,6 +630,12 @@ function_call:
 	|	fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM variable_without_objects '(' { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); zend_do_begin_class_member_function_call(&$1, &$3 TSRMLS_CC); }
 			function_call_parameter_list
 			')' { zend_do_end_function_call(NULL, &$$, &$6, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
+	|	variable_class_name T_PAAMAYIM_NEKUDOTAYIM T_STRING '(' { zend_do_begin_class_member_function_call(&$1, &$3 TSRMLS_CC); }
+			function_call_parameter_list
+			')' { zend_do_end_function_call(NULL, &$$, &$6, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
+	|	variable_class_name T_PAAMAYIM_NEKUDOTAYIM variable_without_objects '(' { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); zend_do_begin_class_member_function_call(&$1, &$3 TSRMLS_CC); }
+			function_call_parameter_list
+			')' { zend_do_end_function_call(NULL, &$$, &$6, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
 	|	variable_without_objects  '(' { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); zend_do_begin_dynamic_function_call(&$1 TSRMLS_CC); }
 			function_call_parameter_list ')'
 			{ zend_do_end_function_call(&$1, &$$, &$4, 0, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
@@ -781,8 +787,13 @@ variable_without_objects:
 
 static_member:
 		fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM variable_without_objects { $$ = $3; zend_do_fetch_static_member(&$$, &$1 TSRMLS_CC); }
+	|	variable_class_name T_PAAMAYIM_NEKUDOTAYIM variable_without_objects { $$ = $3; zend_do_fetch_static_member(&$$, &$1 TSRMLS_CC); }
+
 ;
 
+variable_class_name:
+		reference_variable { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); zend_do_fetch_class(&$$, &$1 TSRMLS_CC); }
+;
 
 base_variable_with_function_calls:
 		base_variable		{ $$ = $1; }
@@ -907,6 +918,7 @@ isset_variables:
 
 class_constant:
 		fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM T_STRING { zend_do_fetch_constant(&$$, &$1, &$3, ZEND_RT TSRMLS_CC); }
+	|	variable_class_name T_PAAMAYIM_NEKUDOTAYIM T_STRING { zend_do_fetch_constant(&$$, &$1, &$3, ZEND_RT TSRMLS_CC); }
 ;
 
 %%

tests/lang/041.phpt

@@ -0,0 +1,20 @@
+--TEST--
+Dynamic access of static members
+--FILE--
+<?php
+class A {
+    public    static $b = 'foo';
+}
+
+$classname       =  'A';
+$wrongClassname  =  'B';
+
+echo $classname::$b."\n";
+echo $wrongClassname::$b."\n";
+
+?> 
+===DONE===
+--EXPECTF--
+foo
+
+Fatal error: Class 'B' not found in %s041.php on line %d

tests/lang/042.phpt

@@ -0,0 +1,19 @@
+--TEST--
+Dynamic access of constants
+--FILE--
+<?php
+class A {
+    const B = 'foo';
+}
+
+$classname       =  'A';
+$wrongClassname  =  'B';
+
+echo $classname::B."\n";
+echo $wrongClassname::B."\n";
+?> 
+===DONE===
+--EXPECTF--
+foo
+
+Fatal error: Class 'B' not found in %s042.php on line %d

tests/lang/043.phpt

@@ -0,0 +1,19 @@
+--TEST--
+Dynamic call for static methods
+--FILE--
+<?php
+class A {
+    static function foo() { return 'foo'; }
+}
+
+$classname       =  'A';
+$wrongClassname  =  'B';
+
+echo $classname::foo()."\n";
+echo $wrongClassname::foo()."\n";
+?> 
+===DONE===
+--EXPECTF--
+foo
+
+Fatal error: Class 'B' not found in %s043.php on line %d

tests/lang/044.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Dynamic call for static methods dynamically named
+--FILE--
+<?php
+class A {
+    static function foo() { return 'foo'; }
+}
+$classname        =  'A';
+$wrongClassname   =  'B';
+
+$methodname       =  'foo';
+
+echo $classname::$methodname()."\n";
+
+echo $wrongClassname::$methodname()."\n";
+?> 
+===DONE===
+--EXPECTF--
+foo
+
+Fatal error: Class 'B' not found in %s044.php on line %d