Php Mysqli查询插入问题

查询插入不正确时出现问题

当我接到电话时

mysqli_query($GLOBALS["___mysqli_ston"], "INSERT INTO emailerdata (`emailer_timestamp`,`emailer_promoID`,`emailer_name`,`emailer_username`,`emailer_usermd5`,`emailer_email`,`emailer_md5`,`emailer_reactionID`) VALUES ('$date','$promoID','$rec_info[2]','$row[1]','$usermd5','$rec_info[0]','$passmd5','$row[0]')") or die("Error: ". ((is_object($GLOBALS["___mysqli_ston"])) ? mysqli_error($GLOBALS["___mysqli_ston"]) : (($___mysqli_res = mysqli_connect_error()) ? $___mysqli_res : false)). "     with query ". mysqli_query); 

就其本身而言，它很好。但是，当我试图检查数据库中的电子邮件地址是否已经在查询中插入了该特定的促销ID时，它不会插入

我找不到这个查询有什么问题，我确信它很简单，但它没有在屏幕上显示错误，还是死了

$row_amt = mysqli_query($GLOBALS["___mysqli_ston"], "SELECT * from emailerdata where emailer_promoID='$promoID' and emailer_username='$downloadusername'");
    while($row4 !== mysqli_fetch_assoc($row_amt)) {     
    mysqli_query($GLOBALS["___mysqli_ston"], "INSERT INTO emailerdata (`emailer_timestamp`,`emailer_promoID`,`emailer_name`,`emailer_username`,`emailer_usermd5`,`emailer_email`,`emailer_md5`,`emailer_reactionID`) VALUES ('$date','$promoID','$rec_info[2]','$row[1]','$usermd5','$rec_info[0]','$passmd5','$row[0]')") or die("Error: ". ((is_object($GLOBALS["___mysqli_ston"])) ? mysqli_error($GLOBALS["___mysqli_ston"]) : (($___mysqli_res = mysqli_connect_error()) ? $___mysqli_res : false)). "     with query ". mysqli_query); 
    }

非常感谢

使用函数检查查询返回的行数

$row_amt = mysqli_query($GLOBALS["___mysqli_ston"], "SELECT * from emailerdata where emailer_promoID='$promoID' and emailer_username='$downloadusername'");
$rowcount=mysqli_num_rows($row_amt);
if($rowcount == 0) {     
    mysqli_query($GLOBALS["___mysqli_ston"], "INSERT INTO emailerdata (`emailer_timestamp`,`emailer_promoID`,`emailer_name`,`emailer_username`,`emailer_usermd5`,`emailer_email`,`emailer_md5`,`emailer_reactionID`) VALUES ('$date','$promoID','$rec_info[2]','$row[1]','$usermd5','$rec_info[0]','$passmd5','$row[0]')") or die("Error: ". ((is_object($GLOBALS["___mysqli_ston"])) ? mysqli_error($GLOBALS["___mysqli_ston"]) : (($___mysqli_res = mysqli_connect_error()) ? $___mysqli_res : false)). "     with query ". mysqli_query); 
}else{
    echo 'Email is already registered.';
}

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将错误报告添加到文件顶部

错误报告（E_ALL）；ini设置（“显示错误”，1）；mysqli_报告（mysqli_报告错误| mysqli_报告严格）啊，谢谢你，已经产生了整个世界的错误，非常感谢！