blocks|key|959977|text|在您的示例中，第二次返回永远不会发生-第一次返回是PHP将运行的最后一次返回。如果需要返回多个值，则返回一个数组：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|959978|function+test($testvar)+{

++++return+array($var1,+$var2);
}

$result+=+test($testvar);
echo+$result[0];+//+$var1
echo+$result[1];+//+$var2|code-block|syntax|javascript|959979|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|$]]

In your example, the second return will never happen - the first return is the last thing PHP will run. If you need to return multiple values, return an array:

<pre><code>function test($testvar) {

 return array($var1, $var2);
}

$result = test($testvar);
echo $result[0]; // $var1
echo $result[1]; // $var2
</code></pre>

blocks|key|1174861|text|在PHP5.5中还有一个新的概念：generators，你可以从一个函数中产生多个值：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1174862|function+hasMultipleValues()+{
++++yield+"value1";
++++yield+"value2";
}

$values+=+hasMultipleValues();
foreach+($values+as+$val)+{
++++//+$val+will+first+be+"value1"+then+"value2"
}|code-block|syntax|javascript|1174863|entityMap^0|H|A|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|$]]

In PHP 5.5 there is also a new concept: <code>generators</code>, where you can yield multiple values from a function:

<pre><code>function hasMultipleValues() {
 yield "value1";
 yield "value2";
}

$values = hasMultipleValues();
foreach ($values as $val) {
 // $val will first be "value1" then "value2"
}
</code></pre>

blocks|key|1174601|text|或者，您可以通过引用传递：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174602|function+byRef($x,+&$a,+&$b)
{
++++$a+=+10+*+$x;
++++$b+=+100+*+$x;
}

$a+=+0;
$b+=+0;

byRef(10,+$a,+$b);

echo+$a+.+"\n";
echo+$b;|code-block|syntax|javascript|1174603|这将输出|1174604|100
1000|1174605|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Or you can pass by reference:

<pre><code>function byRef($x, &amp;$a, &amp;$b)
{
 $a = 10 * $x;
 $b = 100 * $x;
}

$a = 0;
$b = 0;

byRef(10, $a, $b);

echo $a . "\n";
echo $b;
</code></pre>

This would output

<pre><code>100
1000
</code></pre>

blocks|key|961396|text|对于PHP7.1.0以后的版本，您可以使用新的语法(而不是list函数)：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|961397|/**
*+@return++array++[foo,+bar]
*/
function+getFooAndBar():+array+{
++++return+['foo',+'bar'];
}

[$foo,+$bar]+=+getFooAndBar();

print+'Hello+'.+$foo+.+'+and+'+.+$bar;|code-block|syntax|javascript|961398|如果你想返回2-3个变量，对我来说没问题，否则你应该使用具有所需属性的对象。|961399|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/function.list.php^0|T|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

For PHP 7.1.0 onwards, you can use the new syntax (instead of the <a href="https://www.php.net/manual/en/function.list.php" rel="nofollow noreferrer">list</a> function):
<pre class="lang-php prettyprint-override"><code>/**
* @return array [foo, bar]
*/
function getFooAndBar(): array {
 return ['foo', 'bar'];
}

[$foo, $bar] = getFooAndBar();

print 'Hello '. $foo . ' and ' . $bar;

</code></pre>
It's OK for me if you want to return 2-3 variables, otherwise you should use an object with the desired properties.

blocks|key|961143|text|我知道我来晚了，但这个问题有一个很好的简单的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961144|使用解构可以一次返回多个值。|961145|function+test()
{
++++return+[+'model'+=>+'someValue'+,+'data'+=>+'someothervalue'];
}|code-block|syntax|javascript|961146|现在，您可以使用以下代码|961147|$result+=+test();
extract($result);|961148|extract为数组中的每个成员创建一个变量，以该成员命名。因此，您现在可以访问$model和$data|offset|length|style|CODE|961149|entityMap^0|0|0|0|0|0|0|7|14|6|1B|5|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@$O|10|P|11|Q|R]|$O|12|P|13|Q|R]|$O|14|P|15|Q|R]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|T|$]]

I know that I am pretty late, but there is a nice and simple solution for this problem. 
It's possible to return multiple values at once using destructuring.

<pre><code>function test()
{
 return [ 'model' =&gt; 'someValue' , 'data' =&gt; 'someothervalue'];
}
</code></pre>

Now you can use this

<pre><code>$result = test();
extract($result);
</code></pre>

<code>extract</code> creates a variable for each member in the array, named after that member. You can therefore now access <code>$model</code> and <code>$data</code>

blocks|key|960673|text|您可以从一个函数返回多个数组和标量|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960674|function+x()
{
++++$a=array("a","b","c");
++++$b=array("e","f");
++++return+array('x',$a,$b);
}

list+($m,$n,$o)=x();

echo+$m."\n";
print_r($n);
print_r($o);|code-block|syntax|javascript|960675|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 can return multiple arrays and scalars from a function

<pre><code>function x()
{
 $a=array("a","b","c");
 $b=array("e","f");
 return array('x',$a,$b);
}

list ($m,$n,$o)=x();

echo $m."\n";
print_r($n);
print_r($o);
</code></pre>

blocks|key|960840|text|不可能有两个返回语句。但是，它不会抛出错误，但是当调用函数时，您将只收到第一个return语句值。我们可以使用数组的return来获得多个返回值。例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960841|function+test($testvar)
{
++//+do+something
++//just+assigning+a+string+for+example,+we+can+assign+any+operation+result
++$var1+=+"result1";
++$var2+=+"result2";
++return+array('value1'+=>+$var1,+'value2'+=>+$var2);
}|code-block|syntax|javascript|960842|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|$]]

Its not possible have two return statement. However it doesn't throw error but when function is called you will receive only first return statement value.
We can use return of array to get multiple values in return. For Example:

<pre><code>function test($testvar)
{
 // do something
 //just assigning a string for example, we can assign any operation result
 $var1 = "result1";
 $var2 = "result2";
 return array('value1' =&gt; $var1, 'value2' =&gt; $var2);
}
</code></pre>

blocks|key|960997|text|最佳实践是将返回的变量放入数组中，然后使用list()将数组值赋给变量。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|960998|<?php

function+add_subt($val1,+$val2)+{
++++$add+=+$val1+%2B+$val2;
++++$subt+=+$val1+-+$val2;

++++return+array($add,+$subt);
}

list($add_result,+$subt_result)+=+add_subt(20,+7);
echo+"Add:+"+.+$add_result+.+'<br+/>';
echo+"Subtract:+"+.+$subt_result+.+'<br+/>';

?>|code-block|syntax|javascript|960999|entityMap^0|L|6|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|$]]

Best Practice is to put your returned variables into array and then use <code>list()</code> to assign array values to variables.

<pre><code>&lt;?php

function add_subt($val1, $val2) {
 $add = $val1 + $val2;
 $subt = $val1 - $val2;

 return array($add, $subt);
}

list($add_result, $subt_result) = add_subt(20, 7);
echo "Add: " . $add_result . '&lt;br /&gt;';
echo "Subtract: " . $subt_result . '&lt;br /&gt;';

?&gt;
</code></pre>

blocks|key|960168|text|可以，您可以使用对象:-)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960169|但最简单的方法是返回一个数组：|960170|return+array('value1',+'value2',+'value3',+'...');|code-block|syntax|javascript|960171|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Yes, you can use an object :-)

But the simplest way is to return an array:

<pre><code>return array('value1', 'value2', 'value3', '...');
</code></pre>

blocks|key|960291|text|根据定义，函数只返回一个值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960292|但是，正如您假设的那样，该值可以是一个数组。|960293|所以你当然可以这样做：|960294|<?PHP
function+myfunc($a,$b){
+++return+array('foo'=>$a,'bar'=>$b);
}
print_r(myfunc('baz','bork'));|code-block|syntax|javascript|960295|也就是说，花点时间思考你想要解决的问题是值得的。虽然返回一个复杂的结果值(如数组或对象)是完全有效的，但如果您认为“我想返回两个值”，那么您的设计可能很糟糕。如果你的问题没有更多的细节，就很难说出来，但停下来三思而后行永远不会有坏处。|960296|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Functions, by definition, only return one value.

However, as you assumed, that value can be an array.

So you can certainly do something like:

<pre><code>&lt;?PHP
function myfunc($a,$b){
 return array('foo'=&gt;$a,'bar'=&gt;$b);
}
print_r(myfunc('baz','bork'));
</code></pre>

That said, it's worth taking a moment and thinking about whatever you're trying to solve. While returning a complex result value (like an array, or an object) is perfectly valid, if you're thinking is that "I want to return two values", you might be designing poorly. Without more detail in your question, it's hard to say, but it never hurts to stop and think twice.

blocks|key|1175569|text|上面给出的绿色标记的答案实际上是不正确的。如果你返回一个数组，你可以在PHP中返回多个值。有关示例，请参阅以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175570|<?php

function+small_numbers()
{
++++return+array+(0,+1,+2);
}

list+($zero,+$one,+$two)+=+small_numbers();|code-block|syntax|javascript|1175571|这段代码实际上是从PHP网站上的以下页面复制过来的：http://php.net/manual/en/functions.returning-values.php我自己也使用过很多次同样的代码，所以我可以确认它是好的，并且可以工作。|offset|length|1175572|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/functions.returning-values.php^0|0|0|Q|1J|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

The answer that's given the green tick above is actually incorrect. You can return multiple values in PHP, if you return an array. See the following code for an example:

<pre><code>&lt;?php

function small_numbers()
{
 return array (0, 1, 2);
}

list ($zero, $one, $two) = small_numbers();
</code></pre>

This code is actually copied from the following page on PHP's website: <a href="http://php.net/manual/en/functions.returning-values.php" rel="nofollow noreferrer">http://php.net/manual/en/functions.returning-values.php</a>
I've also used the same sort of code many times myself, so can confirm that it's good and that it works.

blocks|key|960250|text|是也不是。您不能返回多个变量/对象，但可以按照您的建议，将它们放入一个数组中并返回。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960251|数组的嵌套没有限制，因此您只需将它们打包返回即可。|960252|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|$]]

Yes and no. You can't return more than one variable / object, but as you suggest, you can put them into an array and return that. 

There is no limit to the nesting of arrays, so you can just package them up that way to return.

blocks|key|1174706|text|PHP中的函数只能返回一个变量。您可以使用具有全局作用域的变量，可以返回数组，也可以通过引用函数传递变量，然后更改值，..但所有这些都会降低代码的可读性。我建议你去看看这些类。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174707|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|$]]

Functions in PHP can return only one variable. you could use variables with global scope, you can return array, or you can pass variable by reference to the function and than change value,.. but all of that will decrease readability of your code. 
I would suggest that you look into the classes.

blocks|key|960588|text|我想我会在上面的一些回应上进行扩展……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960589|class+nameCheck{

public+$name;

public+function+__construct(){
++++$this->name+=+$name;
}

function+firstName(){
++++++++++++//+If+a+name+has+been+entered..
++++if(!empty($this->name)){
++++++++$name+=+$this->name;
++++++++$errflag+=+false;
++++++++++++++++++++//+Return+a+array+with+both+the+name+and+errflag
++++++++return+array($name,+$errflag);
++++++++++++//+If+its+empty..
++++}else+if(empty($this->name)){
++++++++$errmsg+=+'Please+enter+a+name.';
++++++++$errflag+=+true;
++++++++++++++++++++//+Return+both+the+Error+message+and+Flag
++++++++return+array($errmsg,+$errflag);
++++}
}

}


if($_POST['submit']){

$a+=+new+nameCheck;
$a->name+=+$_POST['name'];
//++Assign+a+list+of+variables+from+the+firstName+function
list($name,+$err)+=+$a->firstName();

//+Display+the+values..
echo+'Name:+'+.+$name;
echo+'Errflag:+'+.+$err;
}

?>
<form+method="post"+action="<?php+$_SERVER['PHP_SELF'];+?>"+>
<input+name="name"++/>
<input+type="submit"+name="submit"+value="submit"+/>
</form>|code-block|syntax|javascript|960590|这将为您提供一个输入字段和提交按钮，如果名称输入字段为空，它将返回错误标志和一条消息。如果name字段有一个值，它将返回值/name和错误标志0，表示false+=无错误。希望这能有所帮助！|960591|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Thought I would expand on a few of the responses from above....

<pre><code>class nameCheck{

public $name;

public function __construct(){
 $this-&gt;name = $name;
}

function firstName(){
 // If a name has been entered..
 if(!empty($this-&gt;name)){
 $name = $this-&gt;name;
 $errflag = false;
 // Return a array with both the name and errflag
 return array($name, $errflag);
 // If its empty..
 }else if(empty($this-&gt;name)){
 $errmsg = 'Please enter a name.';
 $errflag = true;
 // Return both the Error message and Flag
 return array($errmsg, $errflag);
 }
}

}


if($_POST['submit']){

$a = new nameCheck;
$a-&gt;name = $_POST['name'];
// Assign a list of variables from the firstName function
list($name, $err) = $a-&gt;firstName();

// Display the values..
echo 'Name: ' . $name;
echo 'Errflag: ' . $err;
}

?&gt;
&lt;form method="post" action="&lt;?php $_SERVER['PHP_SELF']; ?&gt;" &gt;
&lt;input name="name" /&gt;
&lt;input type="submit" name="submit" value="submit" /&gt;
&lt;/form&gt;
</code></pre>

This will give you a input field and a submit button once submitted, if the name input field is empty it will return the error flag and a message. If the name field has a value it will return the value/name and a error flag of 0 for false = no errors.
Hope this helps!

blocks|key|960932|text|有些人可能更喜欢将多个值作为对象返回：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960933|function+test()+{
++++$object+=+new+stdClass();

++++$object->x+=+'value+1';
++++$object->y+=+'value+2';

++++return+$object;
}|code-block|syntax|javascript|960934|然后这样叫它：|960935|echo+test()->x;|960936|或者：|960937|$test+=+test();
echo+$test->y;|960938|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Some might prefer returning multiple values as object:

<pre><code>function test() {
 $object = new stdClass();

 $object-&gt;x = 'value 1';
 $object-&gt;y = 'value 2';

 return $object;
}
</code></pre>

And call it like this:

<pre><code>echo test()-&gt;x;
</code></pre>

Or:

<pre><code>$test = test();
echo $test-&gt;y;
</code></pre>

blocks|key|1174646|text|您始终只能返回一个变量，该变量可能是一个数组。但是您可以在函数内部更改全局变量。这在大多数情况下都不是很好的风格，但它是有效的。在类中，您通常在函数内更改类变量，而不返回它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174647|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|$]]

You can always only return one variable which might be an array. But You can change global variables from inside the function. That is most of the time not very good style, but it works. In classes you usually change class varbiables from within functions without returning them.

blocks|key|1175711|text|PHP+7.1更新|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175712|返回一个数组。|1175713|function+test($testvar)
{
++//+Do+something
++return+[$var1,+$var2];
}|code-block|syntax|javascript|1175714|然后像下面这样使用它：|1175715|[$value1,+$value2]+=+test($testvar);|1175716|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

<h1>PHP 7.1 Update</h1>
Return an array.
<pre><code>function test($testvar)
{
 // Do something
 return [$var1, $var2];
}
</code></pre>
then use that like below:
<pre><code>[$value1, $value2] = test($testvar);
</code></pre>

blocks|key|1174338|text|答案是否定的。当解析器到达第一个return语句时，它会将控制返回给调用函数-您的第二个return语句将永远不会被执行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174339|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|$]]

The answer is no. When the parser reaches the first return statement, it will direct control back to the calling function - your second return statement will never be executed.

blocks|key|1174748|text|我认为eliego已经清楚地解释了答案。但是如果你想返回这两个值，把它们放到一个数组中并返回它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174749|function+test($testvar)
{
++//+do+something

++return+array('var1'=>$var1,'var2'=>$var2);
//defining+a+key+would+be+better+some+times+++
}|code-block|syntax|javascript|1174750|//访问返回值|1174751|$returned_values+=+test($testvar);

echo+$returned_values['var1'];
echo+$returned_values['var2'];|1174752|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I think eliego has explained the answer clearly. But if you want to return both values, put them into a array and return it.

<pre><code>function test($testvar)
{
 // do something

 return array('var1'=&gt;$var1,'var2'=&gt;$var2);
//defining a key would be better some times 
}
</code></pre>

//to access return values

<pre><code>$returned_values = test($testvar);

echo $returned_values['var1'];
echo $returned_values['var2'];
</code></pre>

blocks|key|1175100|text|将所有变量添加到数组中，最后返回array。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1175101|function+test($testvar)
{
++//+do+something
++return+array("var1"+=>+$var1,+"var2"+=>+@var2);
}|code-block|syntax|javascript|1175102|然后|1175103|$myTest+=+test($myTestVar);
//$myTest["var1"]+and+$myTest["var2"]+will+be+usable|1175104|entityMap^0|G|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

Add all variables in an array and then finally return the <code>array</code>.

<pre><code>function test($testvar)
{
 // do something
 return array("var1" =&gt; $var1, "var2" =&gt; @var2);
}
</code></pre>

And then 

<pre><code>$myTest = test($myTestVar);
//$myTest["var1"] and $myTest["var2"] will be usable
</code></pre>

blocks|key|1174366|text|允许多次返回的语言通常只是将多个值转换为数据结构。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174367|例如，在Python中，您可以返回多个值。然而，它们实际上只是作为一个元组返回。|1174368|因此，只需创建一个简单的数组并返回该数组，就可以在PHP中返回多个值。|1174369|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Languages which allow multiple returns usually just convert the multiple values into a data structure.

For example, in Python you can return multiple values. However, they're actually just being returned as one tuple.

So you can return multiple values in PHP by just creating a simple array and returning that.

blocks|key|1174403|text|您可以通过引用设置两个或多个变量的值：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174404|function+t(&$a,+&$b)+{
++++$a+=+1;
++++$b+=+2;
}


t($a,+$b);

echo+$a+.+'++'+.+$b;|code-block|syntax|javascript|1174405|输出：|1174406|1+2|1174407|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can get the values of two or more variables by setting them by reference:

<pre><code>function t(&amp;$a, &amp;$b) {
 $a = 1;
 $b = 2;
}


t($a, $b);

echo $a . ' ' . $b;
</code></pre>

Output:

<pre><code>1 2
</code></pre>

blocks|key|960891|text|<?php
function+foo(){
++$you+=+5;
++$me+=+10;
++return+$you;
++return+$me;
}

echo+foo();
//output+is+just+5+alone+so+we+cant+get+second+one+it+only+retuns+first+one+so+better+go+with+array


function+goo(){
++$you+=+5;
++$me+=+10;
++return+$you_and_me+=++array($you,$me);
}

var_dump(goo());+//+var_dump+result+is+array(2)+{+[0]=>+int(5)+[1]=>+int(10)+}+i+think+thats+fine+enough

?>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|960892|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?php
function foo(){
 $you = 5;
 $me = 10;
 return $you;
 return $me;
}

echo foo();
//output is just 5 alone so we cant get second one it only retuns first one so better go with array


function goo(){
 $you = 5;
 $me = 10;
 return $you_and_me = array($you,$me);
}

var_dump(goo()); // var_dump result is array(2) { [0]=&gt; int(5) [1]=&gt; int(10) } i think thats fine enough

?&gt;
</code></pre>

blocks|key|1175321|text|PHP仍然使用"out参数“吗？如果是这样，那么您可以使用语法来修改进入函数的一个或多个参数。然后，您可以在函数返回后自由使用修改后的变量。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175322|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|$]]

Does PHP still use "out parameters"? If so, you can use the syntax to modify one or more of the parameters going in to your function then. You would then be free to use the modified variable after your function returns.

blocks|key|1175612|text|$var1+=+0;
$var2+=+0;

function+test($testvar,+&$var1+,+&$var2)
{
++$var1+=+1;
++$var2+=+2;
++return;
}
test("",+$var1,+$var2);

//+var1+=+1,+var2+=+2+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1175613|这不是一个好方法，但我认为我们可以在函数中同时设置两个变量。|unstyled|1175614|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$var1 = 0;
$var2 = 0;

function test($testvar, &amp;$var1 , &amp;$var2)
{
 $var1 = 1;
 $var2 = 2;
 return;
}
test("", $var1, $var2);

// var1 = 1, var2 = 2 

</code></pre>

It's not a good way, but I think we can set two variables in a function at the same time.

blocks|key|1175479|text|这是最简单的方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175480|public+function+selectAllUsersByRole($userRole,+$selector)+{

++++$this->userRole+=+$userLevel;
++++$this->selector+=+$selector;

++++$sql+=+"SELECT+*+FROM+users+WHERE+role+<=+?+AND+del_stat+=+0";
++++$stm+=+$this->connect()->prepare($sql);+//+Connect+function+in+Dbh+connect+to+database+file
++++$stm->execute([$this->userRole]);+//+This+is+PHP+7.+Use+array($this->userRole)+for+PHP+5

++++$usersIdArray+=+array();
++++$usersFNameArray+=+array();
++++$usersLNameArray+=+array();

++++if($stm->rowCount())+{
++++++++while($row+=+$stm->fetch())+{

++++++++++++array_push($usersIdArray,++++$row['id']);
++++++++++++array_push($usersFNameArray,+$row['f_name']);
++++++++++++array_push($usersLNameArray,+$row['l_name']);

++++++++++++//+You+can+return+only+$row['id']+or+f_name+or+...
++++++++++++//+I+used+the+array+because+it's+most+used.
++++++++}
++++}
++++if($this->selector+==+1)+{
++++++++return+$usersIdArray;
++++}elseif($this->selector+==+2)+{
++++++++return+$usersFNameArray;
++++}elseif($this->selector+==+3)+{
++++++++return+$usersLNameArray;
++++}

}|code-block|syntax|javascript|1175481|我们如何调用这个函数呢？|1175482|$idData+=+$selectAllUsers->selectAllUsersByLevel($userRole,+0);
print_r($idData);
$idFName+=+$selectAllUsers->selectAllUsersByLevel($userRole,+1);
print_r($idFname);|1175483|就这样。非常简单。|1175484|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This is the easiest way to do it:

<pre><code>public function selectAllUsersByRole($userRole, $selector) {

 $this-&gt;userRole = $userLevel;
 $this-&gt;selector = $selector;

 $sql = "SELECT * FROM users WHERE role &lt;= ? AND del_stat = 0";
 $stm = $this-&gt;connect()-&gt;prepare($sql); // Connect function in Dbh connect to database file
 $stm-&gt;execute([$this-&gt;userRole]); // This is PHP 7. Use array($this-&gt;userRole) for PHP 5

 $usersIdArray = array();
 $usersFNameArray = array();
 $usersLNameArray = array();

 if($stm-&gt;rowCount()) {
 while($row = $stm-&gt;fetch()) {

 array_push($usersIdArray, $row['id']);
 array_push($usersFNameArray, $row['f_name']);
 array_push($usersLNameArray, $row['l_name']);

 // You can return only $row['id'] or f_name or ...
 // I used the array because it's most used.
 }
 }
 if($this-&gt;selector == 1) {
 return $usersIdArray;
 }elseif($this-&gt;selector == 2) {
 return $usersFNameArray;
 }elseif($this-&gt;selector == 3) {
 return $usersLNameArray;
 }

}
</code></pre>

How can we call this function?

<pre><code>$idData = $selectAllUsers-&gt;selectAllUsersByLevel($userRole, 0);
print_r($idData);
$idFName = $selectAllUsers-&gt;selectAllUsersByLevel($userRole, 1);
print_r($idFname);
</code></pre>

That's it. Very easy.

blocks|key|1174969|text|我也有类似的问题--所以我尝试了一下，然后用谷歌搜索了一下(找到这个帖子)。经过5分钟的尝试和错误后，我发现您可以简单地使用"+and“在一行返回中返回两个(可能更多-还没有测试)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1174970|我的代码：|1174971|++function+get_id(){
++++global+$b_id,+$f_id;
++++//+stuff+happens
++++return+$b_id+AND+$f_id;
++}
++//later+in+the+code:
++get_id();
++var_dump($b_id);
++var_dump($f_id);+//+tested+output+by+var_dump|code-block|syntax|javascript|1174972|它起作用了。我得到了我期望得到/应该得到的两个值。我希望我能帮助任何阅读这篇文章的人:)|1174973|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I had a similar problem - so I tried around and googled a bit (finding this thread). After 5 minutes of try and error I found out that you can simply use
"AND" to return two (maybe more - not tested yet) in one line of return.

My code:

<pre><code> function get_id(){
 global $b_id, $f_id;
 // stuff happens
 return $b_id AND $f_id;
 }
 //later in the code:
 get_id();
 var_dump($b_id);
 var_dump($f_id); // tested output by var_dump
</code></pre>

it works. I got both the values I expected to get/should get. I hope I could help anybody reading this thread :)

blocks|key|960790|text|使用全局变量，如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|960791|<?php

function+t($a)+
{
+global+$add,+$noadd;
+$add=$a%2B$a;
+$noadd=$a;
}

$a=1;
t($a);
echo+$noadd."+".$add;
?>|code-block|syntax|javascript|960792|这将回显%251%252|960793|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

use globals like: 

<pre><code>&lt;?php

function t($a) 
{
 global $add, $noadd;
 $add=$a+$a;
 $noadd=$a;
}

$a=1;
t($a);
echo $noadd." ".$add;
?&gt;
</code></pre>

This will echo 1 2

Is it possible to have a function with two returns like this:

<pre><code>function test($testvar)
{
 // Do something

 return $var1;
 return $var2;
}
</code></pre>

If so, how would I be able to get each return separately?

Multiple returns from a function

有没有可能有一个函数有两个这样的返回：function test($testvar){  // Do something  return $var1;  return $var2;}如果是这样的话，我如何才能分别获得每个回报？

问一个函数的多个返回
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回答 28

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