str3 715 Zend/zend_compile.c zend_string *zend_concat3(char *str1, size_t str1_len, char *str2, size_t str2_len, char *str3, size_t str3_len) /* {{{ */ str3 722 Zend/zend_compile.c memcpy(ZSTR_VAL(res) + str1_len + str2_len, str3, str3_len); str3 503 ext/libxml/libxml.c error_copy.str3 = NULL;