diff options
| -rw-r--r-- | ext/standard/formatted_print.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ext/standard/formatted_print.c b/ext/standard/formatted_print.c index 57a32bef1a..7a11b3a5f0 100644 --- a/ext/standard/formatted_print.c +++ b/ext/standard/formatted_print.c @@ -480,6 +480,14 @@ php_formatted_print(int ht, int *len, int use_array TSRMLS_DC) while (isdigit((int)format[temppos])) temppos++; if (format[temppos] == '$') { argnum = php_sprintf_getnumber(format, &inpos); + + if (argnum == 0) { + efree(result); + efree(args); + php_error(E_WARNING, "%s(): zero is not a valid argument number", get_active_function_name(TSRMLS_C)); + return NULL; + } + inpos++; /* skip the '$' */ } else { argnum = currarg++; |