blocks|key|386545|text|Order是一个保留词。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|386546|所有保留词的列表：|386547|http://dev.mysql.com/doc/refman/5.6/en/reserved-words.html|386548|entityMap|0|LINK|mutability|MUTABLE|url^0|0|5|0|0|0|1M|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]]|E|$]]|$1|J|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|I]]]]

<code>Order</code> is a reserved word.

List of all reserved words:

<a href="http://dev.mysql.com/doc/refman/5.6/en/reserved-words.html" rel="nofollow">http://dev.mysql.com/doc/refman/5.6/en/reserved-words.html</a>

blocks|key|386627|text|ORDER是MYSQL中的保留关键字。要么使用backticks+(`)转义它，要么选择不同的名称。有关详细信息，请参阅这个职位。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|386628|此外，如果启用错误报告，除非数组中的这些键是常量，否则页面上应该有警告。|386629|注意:使用未定义的常量枪-假定的“枪”.
注意:使用未定义的常量颜色-假定的“颜色”在……
等|blockquote|386630|http://3v4l.org/8PLuh|386631|它工作的原因是这些键正在被PHP转换，但是你真的应该引用他们的话和启用错误报告。|386632|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/23446377/syntax-error-due-to-using-a-reserved-word-as-a-table-or-column-name-in-mysql|1|2|http://www.php.net/manual/en/language.types.string.php|3|https://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php^0|0|5|1O|4|0|0|0|0|0|L|1|0|L|B|2|X|6|3|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@$9|14|A|15|1|16]]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|19|8|@]|D|@$9|1A|A|1B|1|1C]]|E|$]]|$1|M|3|N|5|6|7|1D|8|@]|D|@$9|1E|A|1F|1|1G]|$9|1H|A|1I|1|1J]]|E|$]]|$1|O|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|L]]|X|$5|R|S|T|E|$U|Y]]|Z|$5|R|S|T|E|$U|10]]]]

<code>ORDER</code> is a reserved keyword in MYSQL. Either escape it using backticks (`) or choose a different name. See <a href="https://stackoverflow.com/questions/23446377/syntax-error-due-to-using-a-reserved-word-as-a-table-or-column-name-in-mysql">this post</a> for more information.

Also you should have a warning on your page if you enable error reporting unless those keys in your array are constants.

<blockquote>
 Notice: Use of undefined constant Gun - assumed 'Gun' in ... 
 Notice: Use of undefined constant Color - assumed 'Color' in ... 
 etc
</blockquote>

<a href="http://3v4l.org/8PLuh" rel="nofollow noreferrer">http://3v4l.org/8PLuh</a>

The reason it works is that those keys are being converted by PHP, but <a href="http://www.php.net/manual/en/language.types.string.php" rel="nofollow noreferrer">you should really quote them</a> and <a href="https://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php">enable error reporting</a>.

blocks|key|28416|text|Order是一个mysql保留关键字。它不应该被使用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|28417|您的数组定义似乎不完美。您将键赋值为常量。这不是一个好做法。|28418|http://www.php.net/manual/en/language.types.array.php|28419|$tables+=+array(Gun+=>+6,Color+=>+2,Holster+=>+2,Canter+=>+1,Hand+=>+1);|code-block|syntax|javascript|28420|应该是|28421|$tables+=+array("Gun"+=>+6,"Color"+=>+2,"Holster"+=>+2,"Canter"+=>+1,"Hand"+=>+1);|28422|entityMap|0|LINK|mutability|MUTABLE|url^0|0|5|8|5|0|0|0|1H|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|J|3|K|5|L|7|19|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1A|8|@]|D|@]|E|$]]|$1|Q|3|R|5|L|7|1B|8|@]|D|@]|E|$M|N]]|$1|S|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|I]]]]

<code>Order</code> is a <code>mysql</code> reserved keyword. Its supposed not to be used.

Your array definition seems to be not perfect. You are assigning keys as constants. That is not a good practice.

<a href="http://www.php.net/manual/en/language.types.array.php" rel="nofollow">http://www.php.net/manual/en/language.types.array.php</a>

<pre><code>$tables = array(Gun =&gt; 6,Color =&gt; 2,Holster =&gt; 2,Canter =&gt; 1,Hand =&gt; 1);
</code></pre>

should be

<pre><code>$tables = array("Gun" =&gt; 6,"Color" =&gt; 2,"Holster" =&gt; 2,"Canter" =&gt; 1,"Hand" =&gt; 1);
</code></pre>

I'm trying to add a field Order to my tables:

<pre><code>$tables = array(Gun =&gt; 6,Color =&gt; 2,Holster =&gt; 2,Canter =&gt; 1,Hand =&gt; 1);
foreach($tables as $key =&gt; $val) {
 $table_name = $wpdb-&gt;prefix . 'GunInventory'.$key;
 $sql = "CREATE TABLE $table_name (
 GunInventory".$key."Id int(11) NOT NULL AUTO_INCREMENT,
 Name varchar(200) NOT NULL,
 Value char(".$val.") NOT NULL,
 Price decimal(10,2) NOT NULL,
 Order INT NOT NULL,
 UNIQUE KEY GunInventory".$key."Id (GunInventory".$key."Id)
 );";
 dbDelta($sql);
}
</code></pre>

The issue is the field Order is not being created on my tables, I've tried deleting the field from the tables and reinstalling the plug-in and my tables stay the same. The script will though create the tables.

I tried turning on debug and I don't get any errors.

dbDelta isn't altering the table

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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我试图在我的桌子上添加一个字段订单：$tables = array(Gun => 6,Color => 2,Holster => 2,Canter => 1,Hand => 1);foreach($tables as $key => $val) {    $table_name = $wpdb->prefix . 'G...

问dbDelta没有修改表
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