Mysql_real_escape_string()警告混淆 [英] Mysql_real_escape_string() Warning Confusion

问题描述

echo mysql_real_escape_string($dbc, "string");

产生警告:

Warning: mysql_real_escape_string() expects parameter 1 to be string, object 
given in **...**

所以即使我给函数看似显然是字符串对象，也不会将它们视为字符串.

So even when I give the function what seem to be obviously string objects it's not seeing them as strings.

这是怎么回事?

推荐答案

mysql_real_escape_string仅将字符串用作参数.就是这样.

mysql_real_escape_string just takes a string for an argument. That's it.

$string = mysql_real_escape_string('string')

如果要指定链接标识符，它是可选的第二个参数:

If you want to specify the link identifier, it is the optional second argument:

$string = mysql_real_escape_string('string', $dbc)

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