下面是我的查询,我想在Mysqlquery中调用PHP substr();。显然,substr(ident.secondName,-2,2)正在工作,但是substr(ident.FirstName,0,2)不工作。提前谢谢你!OR substr(ident.FirstName, 0, 2) = '$first_two' OR ident.FirstName IS NULL AND
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我有以下代码: $highscore = mysql_result(mysql_query("SELECT Score FROM HighScore WHERE相反,我得到了错误:MySQL error: Unable to jump to row 0 on MySQL result index 8。