blocks|key|4373166|text|我看不出有什么错，但你可以|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4373167|echo+$day[date('N')-1];|code-block|syntax|javascript|4373168|你需要记住数组索引是从0开始的，而不是从1开始的，所以$day7会给你索引错误，因为没有7。|4373169|编辑：|4373170|正如paoloa+bergantino指出的那样。您需要使$day变量成为全局变量，或者您可以将其放在函数的作用域中。|offset|length|4373171|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/16417/paolo-bergantino^0|0|0|0|0|2|H|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

Well i don't see a mistake, but you could just do

<pre><code>echo $day[date('N')-1];
</code></pre>

you need to remember that array indexes start at 0 not 1. So $day[7] will give you index error because theres is no 7.

EDIT:

as <a href="https://stackoverflow.com/users/16417/paolo-bergantino">paoloa bergantino</a> pointed out. You need to make the $day variable global, or you could put it inside the scope of the function.

blocks|key|3525947|text|您需要添加|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3525948|global+$day;|code-block|syntax|javascript|3525949|在函数的顶部。|3525950|有关更多信息，请查看variable+scoping上的PHP手册。除此之外，作为The.Anti.9+mentioned，您可以这样做：|offset|length|style|CODE|3525951|$days+=+array("Lunes","Martes","Miércoles","Jueves","Viernes","Sábado","Domingo");
function+today()+{
++++global+$days;
++++echo+$days[date("N")-1];
}
today();|3525952|entityMap|0|LINK|mutability|MUTABLE|url|http://us3.php.net/global|1|https://stackoverflow.com/questions/523113/php-no-response-issue/523118#523118^0|0|0|0|A|G|A|G|0|15|K|1|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|13|8|@$K|14|L|15|M|N]]|9|@$K|16|L|17|1|18]|$K|19|L|1A|1|1B]]|A|$]]|$1|O|3|P|5|D|7|1C|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]|Y|$5|T|U|V|A|$W|Z]]]]

You need to add

<pre><code>global $day;
</code></pre>

At the top of your function.

Check out the PHP manual on <a href="http://us3.php.net/global" rel="nofollow noreferrer"><code>variable scoping</code></a> for more. In addition to that, as <a href="https://stackoverflow.com/questions/523113/php-no-response-issue/523118#523118">The.Anti.9 mentioned</a>, you could just do:

<pre><code>$days = array("Lunes","Martes","Miércoles","Jueves","Viernes","Sábado","Domingo");
function today() {
 global $days;
 echo $days[date("N")-1];
}
today();
</code></pre>

blocks|key|4373244|text|由于date('N')返回星期几(1+-+7)，您还可以创建一个从1开始的索引数组：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4373245|$day+=+array(1+=>+"Lunes","Martes","Miércoles","Jueves",
++++++++++++++++++"Viernes","Sábado","Domingo");
echo+$day[date('N')];|code-block|syntax|javascript|4373246|entityMap^0|2|9|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Since <code>date('N')</code> returns you the day of the week (1 - 7) you could create also an 1-based index array:

<pre><code>$day = array(1 =&gt; "Lunes","Martes","Miércoles","Jueves",
 "Viernes","Sábado","Domingo");
echo $day[date('N')];
</code></pre>

blocks|key|3526119|text|避免使用全局变量(即often-times+a+bad+idea)。您可以只将变量传递给函数。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3526120|因此，将函数声明更改为|3526121|function+today($day)+|code-block|syntax|javascript|3526122|的最后一个函数调用|3526123|today($day);|3526124|请注意，这两个$day不是相同的。|3526125|function+today($day)只是说明此函数中的每个$day变量都将包含作为此参数传入的值。它是，而不是你声明的数组。因此，您可以将其更改为任何有效的php变量名称，以及函数范围内的所有$days，结果将保持不变。|style|CODE|BOLD|3526126|today($day)表示将您之前声明的Array+$day传递到函数today中。|3526127|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Global_variable^0|A|M|0|0|0|0|0|0|0|0|K|1H|1N|0|0|16|0|B|K|5|Z|5|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1A|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1B|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|1C|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|1D|8|@]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1E|8|@$A|1F|B|1G|S|T]|$A|1H|B|1I|S|U]]|9|@]|C|$]]|$1|V|3|W|5|6|7|1J|8|@$A|1K|B|1L|S|U]|$A|1M|B|1N|S|T]|$A|1O|B|1P|S|T]|$A|1Q|B|1R|S|T]]|9|@]|C|$]]|$1|X|3|-4|5|6|7|1S|8|@]|9|@]|C|$]]]|Y|$Z|$5|10|11|12|C|$13|14]]]]

To avoid using global variables (which is <a href="http://en.wikipedia.org/wiki/Global_variable" rel="nofollow noreferrer">often-times a bad idea</a>). You can just pass the variable in to the function.

Thus change the function declaration to

<pre><code>function today($day) 
</code></pre>

and the last function call to

<pre><code>today($day);
</code></pre>

Note that the two $day's are not the same.

The <code>function today($day)</code> is simply saying that every $day variable within this function will contain the value that is passed in as this argument. It is not the array you declared. Therefore you can change this to whatever valid php variable name you want, along with all of the $days within the function scope and the result will remain the same.

The <code>today($day)</code> is saying pass in the <code>Array</code> $day that you declared before into the function <code>today</code>.

I have this piece of code I'm trying to get to display but no matter how I do it I just don't get any response or error whatsoever.

<pre><code>&lt;?php
$day = array("Lunes","Martes","Miércoles","Jueves","Viernes","Sábado","Domingo");
//$month[]= array("Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Agosto","Septiembre","Octubre","Noviembre","Diciembre");

function today(){
 $d = date("N");
 switch ($d){
 case 1: 
 echo $day[1];
 break;
 case 2:
 echo $day[2];
 break;
 case 3:
 echo $day[3];
 break;
 case 4:
 echo $day[4];
 break;
 case 5:
 echo $day[5];
 break;
 case 6:
 echo $day[6];
 break;
 case 7:
 echo $day[7];
 break;
 }
} 
today();
?&gt;
</code></pre>

Can anyone see any obvious mistake I might be making and haven't noticed?

PHP No response Issue

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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我有一段我想要显示的代码，但不管我怎么做，我都得不到任何响应或错误。<?php$day = array("Lunes","Martes","Miércoles","Jueves","Viernes","Sábado","Domingo");//$month[]= array("Enero","Febrero","Mar...

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