1--TEST-- 2Frameless jmp 3--FILE-- 4<?php 5namespace Foo; 6function declare_local_class_exists() { 7 function class_exists() { 8 var_dump(__FUNCTION__); 9 return true; 10 } 11} 12var_dump(CLASS_EXISTS('Foo')); 13declare_local_class_exists(); 14var_dump(CLASS_EXISTS('Foo')); 15?> 16--EXPECT-- 17bool(false) 18string(16) "Foo\class_exists" 19bool(true) 20