Question

您的SQL语法有错误;检查与MySQL服务器版本对应的手册，以便在＆＃39; =

附近使用正确的语法

$_email= $connection-> real_escape_string("abc@yahoo.com"); 

$checkSql  = "SELECT * ";
$checkSql .= "FROM customer_registration";
$checkSql .= "WHERE ";
$checkSql .= "EMAIL=" . $_email ;

$result = $connection-> query($checkSql);

上面的php / mysql查询中的SELECT语句中出现了什么错误？

Answer 1

$checkSql  = "SELECT * ";
$checkSql .= "FROM customer_registration ";
$checkSql .= "WHERE ";
$checkSql .= "EMAIL LIKE '" . $_email ."'";

$result = $connection-> query($checkSql);

在您的代码中使用EMAIL = ".$_email;这是错误的，至少用单引号包装$ _eamil

 $checkSql .= "EMAIL='" . $_email."'" ;

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Answer 2

$checkSql .= "Email = \"$_email\"";

Answer 3

猜猜是什么？答案就在那里，就是我只是缺少``表名和字段。

$checkSql  = "SELECT * ";
$checkSql .= "FROM `customer_registration`";
$checkSql .= "WHERE `EMAIL` = ". "'{$_email}' ";

$result = $connection-> query($checkSql);

部分答案在这里： -

Error in your SQL syntax; check the manual that corresponds to your MySQL server version

在MySQL查询中传递php变量

3 个答案: