strnatcasecmp    2724 ext/standard/basic_functions.c 	PHP_FE(strnatcasecmp,													arginfo_strnatcasecmp)
strnatcasecmp      87 ext/standard/php_string.h PHP_FUNCTION(strnatcasecmp);
strnatcasecmp    5262 ext/standard/string.c PHP_FUNCTION(strnatcasecmp)