Question

$sql_select3 = "UPDATE `pdfhash` 
SET `PdfHash` = '$pdf1hash',`DateModified` = '.$date.' 
WHERE `Filename` ='current.pdf'";

此SQL语句返回一个说明此

的错误

Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'current.pdf'',`DateModified` = 'Thursday the 30th ' WHERE `Filename` ='.current.' at line 1

Answer 1

不正确的引用如下所示，

$sql_select3 = "UPDATE `pdfhash` SET `PdfHash` = '$pdf1hash',
               `DateModified` = " . $date ." 
                WHERE `Filename` ='current.pdf'";

Answer 2

试试这个

$sql_select3 = "UPDATE `pdfhash` SET `PdfHash` = '".$pdf1hash."',`DateModified` = '".$date."' WHERE `Filename` ='current.pdf'";

这会有所帮助。

Answer 3

替换

'.$date.'

使用

'".$date."'

Answer 4

$ sql_select3 =“UPDATE pdfhash SET PdfHash ='$ pdf1hash'，DateModified ='”。$ date。“'WHERE Filename ='current.pdf ““;

'$日期'。到

'“。$ date。”'

UPDATE语句中的SQl语法错误

4 个答案: