sql:select id,f_id from category where id = <br/>错误: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<pre>Array
(
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            [function] => execute_dql
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                                            [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
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            [type] => ->
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            [function] => getMainPos
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                                    [stat] => Uptime: 110602679  Threads: 5  Questions: 26006164791  Slow queries: 0  Opens: 207157072  Flush tables: 1  Open tables: 2000  Queries per second avg: 235.131
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            [type] => ->
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</pre>