php sprintf() 是什么意思：参数太少
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What is the meaning of sprintf(): Too few arguments
提问by eniac05
I have an sql query like this
我有一个像这样的 sql 查询
if (isset($_POST['no_peserta_mhs_2015'])) {
$colname_rec_mhs_2015 = $_POST['no_peserta_mhs_2015'];
}
mysql_select_db($database_connect, $connect);
$query_rec_mhs_2015 = sprintf("SELECT * FROM mhs_2015 WHERE no_peserta_mhs_2015 = %s or nama_mhs_2015 like %s ", GetSQLValueString($colname_rec_mhs_2015, "text"));
But I get this error
但我收到这个错误
Warning: sprintf(): Too few arguments in C:\xampp\htdocs\gugus_2015\index.php on line 39 Query was empty
I don't know what's wrong.
我不知道怎么了。
回答by Paul Coldrey
You have two %s items in the string but only one parameter supplied after the string. For each '%' item in the format string it expects a matching parameter after the string to use to find in the value.
字符串中有两个 %s 项，但在字符串后只提供了一个参数。对于格式字符串中的每个 '%' 项目，它需要在字符串后面有一个匹配参数，用于在值中查找。
like this:
像这样：
sprintf("item 1: %s, item 2: %s", "item1", "item2");
what you have is like:
你拥有的是：
sprintf("item 1: %s, item 2: %s", "item1");
so there is no entry for the item 2 string to match
所以没有条目 2 字符串匹配
