blocks|key|4066450|text|不同之处在于，前者将屏蔽mysql_fetch_array()中发生的任何错误，从而使调试更加困难。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4066451|entityMap^0|C|J|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The difference is that the former will mask any errors that occur in <code>mysql_fetch_array()</code>, making debugging more difficult.

blocks|key|3781229|text|不同之处在于错误报告。如果在mysql_fetch_array前设置@，所有错误都将被忽略。see+php+errorcontrol|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3781230|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/language.operators.errorcontrol.php^0|1A|K|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The difference is the error reporting.
If you set a @ before mysql_fetch_array, any errors will be ignored.
<a href="http://php.net/manual/en/language.operators.errorcontrol.php" rel="nofollow">see php errorcontrol</a>

blocks|key|314995|text|唯一不同的是，第一个代码中mysql_fetch_array前面的@将阻止任何错误显示在屏幕上。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|314996|entityMap^0|D|H|X|1|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

the only difference is that the <code>@</code> in front of the <code>mysql_fetch_array</code> in the first code will supress any error from being displayed on the screen.

blocks|key|2167632|text|第一个用于抑制错误：http://davidwalsh.name/suppress-php-errors-warnings|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2167633|entityMap|0|LINK|mutability|MUTABLE|url|http://davidwalsh.name/suppress-php-errors-warnings^0|A|1F|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

the first one suppresses errors: <a href="http://davidwalsh.name/suppress-php-errors-warnings" rel="nofollow">http://davidwalsh.name/suppress-php-errors-warnings</a>

blocks|key|4066619|text|它们是相同的。由于抑制操作符@，第一个mysql_fetch_array()不会产生错误消息。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4066620|entityMap^0|E|1|J|J|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

They are identical. The first <code>mysql_fetch_array()</code> will not produce error messages due to the suppression operator <code>@</code>.

blocks|key|4066684|text|第一个将静默地忽略任何错误。第二个将显示mysql_fetch_array抛出的任何错误或异常(例如，连接问题)。魔力来自于@标志。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4066685|entityMap^0|K|H|1Q|1|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

The first one will silently ignore any error. The second one will display any error or exceptions thrown the <code>mysql_fetch_array</code> (for example, connection problem). The magic comes from the <code>@</code> sign.

blocks|key|2167743|text|如果出现错误，@mysql_fetch_array($resForStateList))不会显示任何消息。就这样。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2167744|entityMap^0|7|11|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

<code>@mysql_fetch_array($resForStateList))</code>
doesn't show up any message in case of an error. 
That's all.

blocks|key|2167799|text|不同之处在于，第一个代码示例中的@mysql_fetch_array获取数组，抑制任何错误，而mysql_fetch_array执行相同的操作，但不抑制错误。实际上，第二种方法更正确。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|2167800|使用@的坏处在于它会使调试变得复杂。有了这种抑制，在发生错误的情况下，您将以空数组结束，因此它看起来就像用于获取$resForStateList的查询返回了空结果。但是，您实际上可能已经破坏了查询，拒绝了数据库连接以及其他任何东西。使用@+，你永远不会知道出了什么问题，。|2167801|所以，不要使用@。相反，请使用error+handling+functions。最好的方法是检查某些东西是否可能导致错误，例如，如果出现任何错误，mysql_query将返回false，因此您可能希望像这样检查它|2167802|$result+=+nysql_query("qwerty");
if+(!$result){
++++echo+mysql_error();
}|code-block|syntax|javascript|2167803|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/manual/en/ref.errorfunc.php^0|G|I|1B|H|12|1I|0|0|3B|3C|G|2|1|1K|G|3A|1|0|0|2Y|7|1|21|B|L|I|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]|$9|12|A|13|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|14|8|@$9|15|A|16|B|D]|$9|17|A|18|B|D]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|E|@]|F|$]]|$1|I|3|J|5|6|7|1F|8|@$9|1G|A|1H|B|D]|$9|1I|A|1J|B|C]|$9|1K|A|1L|B|C]]|E|@$9|1M|A|1N|1|1O]]|F|$]]|$1|K|3|L|5|M|7|1P|8|@]|E|@]|F|$N|O]]|$1|P|3|-4|5|6|7|1Q|8|@]|E|@]|F|$]]]|Q|$R|$5|S|T|U|F|$V|W]]]]

The difference is that <code>@mysql_fetch_array</code> in first code sample fetches the array suppressing any errors, while <code>mysql_fetch_array</code> do the same but not suppressing errors. Actually, the second one is more correct way.

The evil of using <code>@</code> is in that it comlicates debugging a lot. With this suppression, in case of error you'll end up with empty arrays, so it will look just like query used to get <code>$resForStateList</code> have returned empty result. But, you actually might have broken query, refused database connection and whatever else. And with <code>@</code> you will never know that something goes wrong. 

So, don't use <code>@</code>. Instead, use error <a href="http://www.php.net/manual/en/ref.errorfunc.php" rel="nofollow">handling functions</a>. And the best way is to check if something could cause error, e.g. <code>mysql_query</code> returns false in case of any error, so you might want to check it like

<pre><code>$result = nysql_query("qwerty");
if (!$result){
 echo mysql_error();
}
</code></pre>

blocks|key|4066797|text|第一个版本中的@基本上意味着“如果这个函数触发错误，只需隐藏它，不记录或显示它”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4066798|永远不要使用@+error抑制运算符！这不仅会造成调试的噩梦，还会损害应用程序的性能。使用error_reporting、log_errors和display_errors来设置正确的错误消息行为。|4066799|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The @ in the first version basically means "If this function triggers an error, just hide it, don't log or display it". 

Don't ever use the @ error suppression operator! Not only does it make for a debugging nightmare, but it also harms application performance. Use error_reporting, log_errors and display_errors to set proper error message behaviour instead.

blocks|key|4066812|text|@是一个可以抑制错误的运算符。添加@时，您的语句不会抛出错误。你可以在这里阅读更多内容：http://thesmithfam.org/blog/2006/05/07/php-the-operator/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4066813|entityMap|0|LINK|mutability|MUTABLE|url|http://thesmithfam.org/blog/2006/05/07/php-the-operator/^0|18|1K|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The @ is an operator thet suppresses errors. Your statement will not throw errors when the @ is added. You can read more here: <a href="http://thesmithfam.org/blog/2006/05/07/php-the-operator/" rel="nofollow">http://thesmithfam.org/blog/2006/05/07/php-the-operator/</a>

blocks|key|3781570|text|在这种情况下，不要使用@运算符。只有当资源无效时，mysql_fetch_array才会抛出错误。在获得此资源之后，您应该在此之前检查过。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3781571|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Don't use the @ operator in this case. mysql_fetch_array will only throw an error if the resource is not valid. You should have checked this before, after you got this resource.

blocks|key|4066880|text|当您在表达式前面加上'@‘时，任何可能生成的错误消息都将被忽略(即不会生成错误输出)。无论如何，如果启用了track_errors特性，则由表达式生成的任何错误消息都将保存在变量$php_errormsg中(并在每次出错时被覆盖)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4066881|有关更多详细信息，请查看PHP+Error+Control。|offset|length|4066882|实际上，我更喜欢使用表达式widthout+'@‘，并使用一个函数来处理所有异常，该函数使用error_log()将所有消息记录在一个文件中。类似于：|4066883|function+error_handler($errno,+$errstr,+$errfile=null,+$errline=null,+$errcontext=null)+{
++++error_log($errstr,+3,+'debug.log');
}

set_error_handler('error_handler',+ERROR_REPORTING);|code-block|syntax|javascript|4066884|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/language.operators.errorcontrol.php|1|http://it.php.net/manual/en/function.error-log.php^0|0|C|H|0|0|1A|B|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

When you prepend '@' to an expression, any error messages that might be generated will be ignored (ie. no error output will be generated). Anyway if the track_errors feature is enabled, any error message generated by the expression will be saved (and overwritten on each error) in the variable $php_errormsg.

Check <a href="http://php.net/manual/en/language.operators.errorcontrol.php" rel="nofollow">PHP Error Control</a> for more details.

Actually, I prefer to use expression widthout '@' and handle all exceptions with a function that log all message in a file with <a href="http://it.php.net/manual/en/function.error-log.php" rel="nofollow">error_log()</a>. Something like:

<pre><code>function error_handler($errno, $errstr, $errfile=null, $errline=null, $errcontext=null) {
 error_log($errstr, 3, 'debug.log');
}

set_error_handler('error_handler', ERROR_REPORTING);
</code></pre>

<pre><code>while($rowForStateList = @mysql_fetch_array($resForStateList))

{
 $sid[$i] = $rowForStateList['state_auto_id'];

 $sname[$i] = $rowForStateList['state_name'];

 $spid[$i] = $rowForStateList['country_auto_id'];

 $i++;
}
</code></pre>

AND

<pre><code>while($rowForStateList = mysql_fetch_array($resForStateList))

{
 $sid[$i] = $rowForStateList['state_auto_id'];

 $sname[$i] = $rowForStateList['state_name'];

 $spid[$i] = $rowForStateList['country_auto_id'];

 $i++;
}
</code></pre>

I cant figure out the diffrence between following two syntaxes

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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while($rowForStateList  =   @mysql_fetch_array($resForStateList)){    $sid[$i]    =   $rowForStateList['state_auto_id'];    $sname[$i]  =   $rowForStateList['st...

问我想不出下面两种语法之间的区别
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