Question

MySQL server version for the right syntax to use near '' at line 1

Db 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 '' at line 1

public static function getCount( $table, $condition = NULL )
{
self::getinstance( "read" );
if ( !empty( $condition ) || is_array( $condition ) )
{
$where = "";
foreach ( $condition as $key => $val )
{
self::parsekey( $key );
$val = self::parsevalue( $val );
$where .= " AND ".$key."=".$val;
}
$where = " WHERE ".substr( $where, 4 );
}
else if ( is_string( $condition ) )
{
if ( strtoupper( substr( trim( $condition ), 0, 3 ) ) == "AND" )
{
$where = " WHERE ".substr( trim( $condition ), 4 );
}

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log里面报错是:

$where = ";

求大神！

Answer 1

你的substr函数可能得到空值了，然后这语句变成where条件为空了。数据库语句就出错了。

追问

该咋办？

Answer 2

把实际出错的语句输出，才比较容易看到问题出在哪。

追问

我在phpmyadmin里面执行，出来这个

#1064 - 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 '<?php

追答

您在phpmyadmin里边执行的什么啊？怎么会有<?php呢？

追问

在可以把实际出错的语句输出？

追答

把where=''''改成where=''试试

追问

不行，还是一样的错误。

追答

上面的代码不够完整，都是在处理$condition，处理完以后应该会有一个拼接和执行查询，把拼接后的语句输出出来看一下。