blocks|key|847695|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|847696|$x+=+4;
if+($x+==+4+%7C%7C+$x+==+5+%7C%7C+$x+==+6)
{echo+"hello+";
echo+"x+is+$x";}|code-block|syntax|javascript|847697|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this one:

<pre><code>$x = 4;
if ($x == 4 || $x == 5 || $x == 6)
{echo "hello ";
echo "x is $x";}
</code></pre>

blocks|key|2749894|text|你有相反的逻辑。你需要|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2749895|if+($x+==+4+%7C%7C+$x+==+5+%7C%7C+$x+==+6)|code-block|syntax|javascript|2749896|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You have the opposite logic. You need

<pre><code>if ($x == 4 || $x == 5 || $x == 6)
</code></pre>

blocks|key|2749928|text|我想要的结果是，如果$x+=+4、5或6，则输出应该是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2749929|+x+is+($x的值)|blockquote|2749930|2749931|2749932|在本例中，如下所示：|2749933|if+($x+!=+4+%7C%7C+$x+!=+5+%7C%7C+$x+!=+6)|code-block|syntax|javascript|2749934|应该是：|2749935|if+($x+==+4+%7C%7C+$x+==+5+%7C%7C+$x+==+6)|2749936|或者：|2749937|if+(in_array($x,+array(4,5,6)))|2749938|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@]|9|@]|A|$]]|$1|E|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|11|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|12|8|@]|9|@]|A|$L|M]]|$1|N|3|O|5|6|7|13|8|@]|9|@]|A|$]]|$1|P|3|Q|5|K|7|14|8|@]|9|@]|A|$L|M]]|$1|R|3|S|5|6|7|15|8|@]|9|@]|A|$]]|$1|T|3|U|5|K|7|16|8|@]|9|@]|A|$L|M]]|$1|V|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|W|$]]

<blockquote>
 The result I want is if $x = 4, 5, or 6 the output should be hello x is (the value of $x)
</blockquote>

in this case, this:

<pre><code>if ($x != 4 || $x != 5 || $x != 6)
</code></pre>

should be:

<pre><code>if ($x == 4 || $x == 5 || $x == 6)
</code></pre>

or:

<pre><code>if (in_array($x, array(4,5,6)))
</code></pre>

blocks|key|847782|text|我能想到的最短版本是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|847783|if+(+in_array($x,+array(4,5,6))+)+{
++++echo+'hello,+x+is+'+.+$x;
}|code-block|syntax|javascript|847784|如果$x在以下值的列表中，则匹配上述条件：4、5和6。|offset|length|style|CODE|847785|有关更多信息，请参阅in_array()+documentation。|847786|为什么你的代码失败了|BOLD|847787|代码不能按预期工作的原因是，您已经创建了一个带有替代(or或%7C%7C)的条件，如果其中的任何表达式都匹配，则匹配该条件。|847788|这意味着，因为至少有一个表达式(例如，$x+!=+4，但如果$x等于1，则匹配所有表达式)，则执行指令。|847789|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.in-array.php^0|0|0|2|2|L|1|N|1|P|1|0|A|A|A|O|0|0|0|A|0|R|2|U|2|0|J|7|U|2|Y|1|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|14|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|15|8|@$I|16|J|17|K|L]|$I|18|J|19|K|L]|$I|1A|J|1B|K|L]|$I|1C|J|1D|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1E|8|@$I|1F|J|1G|K|L]]|9|@$I|1H|J|1I|1|1J]]|A|$]]|$1|O|3|P|5|6|7|1K|8|@$I|1L|J|1M|K|Q]]|9|@]|A|$]]|$1|R|3|S|5|6|7|1N|8|@$I|1O|J|1P|K|L]|$I|1Q|J|1R|K|L]]|9|@]|A|$]]|$1|T|3|U|5|6|7|1S|8|@$I|1T|J|1U|K|L]|$I|1V|J|1W|K|L]|$I|1X|J|1Y|K|L]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12]]]]

The shortest version I can think of is:

<pre><code>if ( in_array($x, array(4,5,6)) ) {
 echo 'hello, x is ' . $x;
}
</code></pre>

The condition above is matched if <code>$x</code> is in the list of the following values: <code>4</code>, <code>5</code> and <code>6</code>.

For more see <a href="http://php.net/manual/en/function.in-array.php" rel="nofollow"><code>in_array()</code> documentation</a>.

Why your code failed

The reason your code did not work as expected was because you have created a condition with alternative (<code>or</code> or <code>||</code>) that is matched if any of the expressions within it are matched.

That means that, because at least one of the expressions (eg. <code>$x != 4</code>, but in case of <code>$x</code> equal to <code>1</code> all of the expressions were matched) was matched, the instruction was executed.

blocks|key|2750001|text|您的代码运行正常--您编写的条件将始终为真。也就是说，x总是不是4或者不是5或者不是6。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2750002|如果要检查相等性，请编写if+($x==4+%7C%7C+$x==5+%7C%7C+$x==6)|offset|length|style|CODE|2750003|entityMap^0|0|C|S|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Your code is functioning correctly--the condition you've written will always be true. That is, x is always not 4 OR not 5 OR not 6. 

If you want to check equality, write <code>if ($x==4 || $x==5 || $x==6)</code>

blocks|key|847819|text|尝试以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|847820|<?php
++++$x+=+1;
if+($x+==+4+%7C%7C+$x+==+5+%7C%7C+$x+==+6)
++++{echo+"hello+";
++++echo+"x+is+$x";}
?>|code-block|syntax|javascript|847821|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this code:

<pre><code>&lt;?php
 $x = 1;
if ($x == 4 || $x == 5 || $x == 6)
 {echo "hello ";
 echo "x is $x";}
?&gt;
</code></pre>

blocks|key|2750065|text|OR+(%7C%7C)逻辑表：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2750066|T+%7C%7C+T+==+T|2750067|T+%7C%7C+F+==+T|2750068|F+%7C%7C+T+==+T|2750069|F+%7C%7C+F+==+F|2750070|与(&&)逻辑表：|2750071|T&T+==+T|2750072|T&F+==+F|2750073|F&T+==+F|2750074|F&F+==+F|2750075|因此，对于1的情况：|2750076|1!=4+%7C%7C+1!=5+%7C%7C+1!=6|2750077|T+%7C%7C+T+%7C%7C+T+==+T(因此为echo)|2750078|对于4的情况：|2750079|4!=4+%7C%7C+4!=5+%7C%7C+4!=6|2750080|F+%7C%7C+T+%7C%7C+T+==+T(因此为echo)|2750081|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1A|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1B|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1C|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1D|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1E|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1F|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1G|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1H|8|@]|9|@]|A|$]]|$1|V|3|W|5|6|7|1I|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|1J|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|1K|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|1L|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|1M|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]]|16|$]]

Logic table for OR (||):

T || T == T

T || F == T

F || T == T

F || F == F

Logic table for AND (&amp;&amp;):

T &amp;&amp; T == T

T &amp;&amp; F == F

F &amp;&amp; T == F

F &amp;&amp; F == F

So for the case of 1:

1!=4 || 1!=5 || 1!=6

T || T || T == T (therefore echo)

For the case of 4:

4!=4 || 4!=5 || 4!=6

F || T || T == T (therefore echo)

Im trying to throw something together in PHP. I can't seem to get this simple bit to work.

The result I want is if $x = 4, 5, or 6 the output should be hello x is (the value of $x)

here is the code:

<pre><code>&lt;?php
 $x = 1;
if ($x != 4 || $x != 5 || $x != 6)
 {echo "hello ";
 echo "x is $x";}
 ?&gt;
</code></pre>

In the example above the output is "hello x is 1"

however if I change the first line of the code to $x = 4 the expected output is "hello x is 4" when the output should be blank.

Thanks,
Chris

PHP if or if somethingelse

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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我正在尝试用PHP拼凑一些东西。我似乎不能让这个简单的部分工作。我想要的结果是，如果$x = 4、5或6，则输出应该是hello x is ($x的值)代码如下：<?php $x = 1;if ($x != 4 || $x != 5 || $x != 6) {echo "hello "; echo "...

问PHP如果或如果有其他东西
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