1--TEST-- 2Bug #43651 (is_callable() with one or more nonconsecutive colons crashes) 3--FILE-- 4<?php 5class Test { 6 static function foo() {} 7} 8 9var_dump(is_callable("\\\\")); 10var_dump(is_callable("\\")); 11var_dump(is_callable("x\\")); 12var_dump(is_callable("\\x")); 13var_dump(is_callable("x\\x")); 14var_dump(is_callable("x\\\\")); 15var_dump(is_callable("\\x")); 16var_dump(is_callable("x\\\\x")); 17var_dump(is_callable("cd")); 18var_dump(is_callable("Test\\")); 19var_dump(is_callable("\\Test")); 20var_dump(is_callable("\\Test\\")); 21var_dump(is_callable("Test::foo")); 22var_dump(is_callable("\\Test::foo")); 23var_dump(is_callable("is_string")); 24var_dump(is_callable("\\is_string")); 25--EXPECT-- 26bool(false) 27bool(false) 28bool(false) 29bool(false) 30bool(false) 31bool(false) 32bool(false) 33bool(false) 34bool(false) 35bool(false) 36bool(false) 37bool(false) 38bool(true) 39bool(true) 40bool(true) 41bool(true) 42