blocks|key|2589708|text|您的array_shift参数太多..您所需要的就是与array_reverse相同的$a|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2589709|<?php
function+transpose($array)
{
++++if+(count($array)+===+0)+return+$array;

++++foreach+($array+as++$rowkey+=>+$row)
++++{
++++++++foreach($row+as+$colkey+=>+$col)
++++++++{
++++++++++++$out[$colkey][$rowkey]+=+$col;
++++++++}
++++}

++++return+$out;
}

function+f($a)
{
++++return+(count($a)+===+0)
++++?+[]
++++:+[
++++++++array_shift($a),
++++++++f(array_reverse(transpose($a)))
++++];
}

print_r(f([[1,2,3,4],[10,11,12,5],[9,8,7,6]]));|code-block|syntax|javascript|2589710|结果|BOLD|2589711|Array
(
++++[0]+=>+Array
++++++++(
++++++++++++[0]+=>+1
++++++++++++[1]+=>+2
++++++++++++[2]+=>+3
++++++++++++[3]+=>+4
++++++++)

++++[1]+=>+Array
++++++++(
++++++++++++[0]+=>+Array
++++++++++++++++(
++++++++++++++++++++[0]+=>+5
++++++++++++++++++++[1]+=>+6
++++++++++++++++)

++++++++++++[1]+=>+Array
++++++++++++++++(
++++++++++++++++++++[0]+=>+Array
++++++++++++++++++++++++(
++++++++++++++++++++++++++++[0]+=>+7
++++++++++++++++++++++++++++[1]+=>+8
++++++++++++++++++++++++++++[2]+=>+9
++++++++++++++++++++++++)

++++++++++++++++++++[1]+=>+Array
++++++++++++++++++++++++(
++++++++++++++++++++++++++++[0]+=>+Array
++++++++++++++++++++++++++++++++(
++++++++++++++++++++++++++++++++++++[0]+=>+10
++++++++++++++++++++++++++++++++)

++++++++++++++++++++++++++++[1]+=>+Array
++++++++++++++++++++++++++++++++(
++++++++++++++++++++++++++++++++++++[0]+=>+Array
++++++++++++++++++++++++++++++++++++++++(
++++++++++++++++++++++++++++++++++++++++++++[0]+=>+11
++++++++++++++++++++++++++++++++++++++++++++[1]+=>+12
++++++++++++++++++++++++++++++++++++++++)

++++++++++++++++++++++++++++++++++++[1]+=>+Array
++++++++++++++++++++++++++++++++++++++++(
++++++++++++++++++++++++++++++++++++++++)

++++++++++++++++++++++++++++++++)

++++++++++++++++++++++++)

++++++++++++++++)

++++++++)

)|2589712|entityMap^0|2|B|R|D|17|2|0|0|0|2|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Z|8|@$9|10|A|11|B|M]]|D|@]|E|$]]|$1|N|3|O|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|P|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|Q|$]]

Your <code>array_shift</code> has too many parameters .. All you need is the <code>$a</code> Same with <code>array_reverse</code>

<pre><code>&lt;?php
function transpose($array)
{
 if (count($array) === 0) return $array;

 foreach ($array as $rowkey =&gt; $row)
 {
 foreach($row as $colkey =&gt; $col)
 {
 $out[$colkey][$rowkey] = $col;
 }
 }

 return $out;
}

function f($a)
{
 return (count($a) === 0)
 ? []
 : [
 array_shift($a),
 f(array_reverse(transpose($a)))
 ];
}

print_r(f([[1,2,3,4],[10,11,12,5],[9,8,7,6]]));
</code></pre>

RESULT

<pre><code>Array
(
 [0] =&gt; Array
 (
 [0] =&gt; 1
 [1] =&gt; 2
 [2] =&gt; 3
 [3] =&gt; 4
 )

 [1] =&gt; Array
 (
 [0] =&gt; Array
 (
 [0] =&gt; 5
 [1] =&gt; 6
 )

 [1] =&gt; Array
 (
 [0] =&gt; Array
 (
 [0] =&gt; 7
 [1] =&gt; 8
 [2] =&gt; 9
 )

 [1] =&gt; Array
 (
 [0] =&gt; Array
 (
 [0] =&gt; 10
 )

 [1] =&gt; Array
 (
 [0] =&gt; Array
 (
 [0] =&gt; 11
 [1] =&gt; 12
 )

 [1] =&gt; Array
 (
 )

 )

 )

 )

 )

)
</code></pre>

blocks|key|79643|text|在PHP中，您的...+(也称为"splat")运算符与JS中的位置不同。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|79644|此外，在PHP7.4之前，splat运算符不能用于数组文字，只能用于函数调用。在f()函数中的用法等同于array_merge()。|79645|function+f($a)
{
++++return+(count($a)+===+0)+
++++?+[]+
++++:+array_merge(
++++++++array_shift($a),+
++++++++f(array_reverse(transpose($a)))
++++);
}|code-block|syntax|javascript|79646|DEMO|79647|entityMap|0|LINK|mutability|MUTABLE|url|https://ideone.com/A06Y8z^0|8|3|0|14|3|1G|D|0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|14|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|O|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

You have your <code>...</code> (AKA "splat") operators in a different place in the PHP than the JS. 

Also, prior to PHP 7.4 the splat operator can't be used in array literals, only in function calls. The use in the <code>f()</code> function is equivalent to <code>array_merge()</code>.

<pre><code>function f($a)
{
 return (count($a) === 0) 
 ? [] 
 : array_merge(
 array_shift($a), 
 f(array_reverse(transpose($a)))
 );
}
</code></pre>

<a href="https://ideone.com/A06Y8z" rel="nofollow noreferrer">DEMO</a>

blocks|key|2589779|text|在PHP版本中，您不需要使用...操作符。您只需要将移位的行与递归调用的结果合并。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2589780|function+f($a)
{
++++return+(count($a)+===+0)+
++++?+[]+
++++:+array_merge(
++++++++array_shift($a),+
++++++++f(array_reverse(transpose($a)))
++++);
}|code-block|syntax|javascript|2589781|2589782|array_merge(array_shift($a),+f(array_reverse(transpose($a))))|2589783|和这里发生的事情是一样的：|2589784|[...a.shift(),+...f(transpose(a).reverse())]|2589785|...在JS中扩展了数组的元素。它在PHP中的工作原理类似，但在这里它只在函数定义或调用中有效。|2589786|entityMap^0|E|3|0|0|0|0|0|0|0|3|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]|$1|L|3|M|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|N|3|O|5|6|7|11|8|@]|D|@]|E|$]]|$1|P|3|Q|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|R|3|S|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|T|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|U|$]]

You don't need to use the <code>...</code> operator in the PHP version. You just need to merge the shifted row with the result of the recursive call.

<pre><code>function f($a)
{
 return (count($a) === 0) 
 ? [] 
 : array_merge(
 array_shift($a), 
 f(array_reverse(transpose($a)))
 );
}
</code></pre>

<hr>

<pre><code>array_merge(array_shift($a), f(array_reverse(transpose($a))))
</code></pre>

is the same thing that's happening here:

<pre><code>[...a.shift(), ...f(transpose(a).reverse())]
</code></pre>

<code>...</code> expands the elements of the array in JS. It works similarly in PHP, but here it is only valid in function definitions or calls.

Asked already a <a href="https://stackoverflow.com/questions/52936104/what-is-the-error-when-converting-functions-from-ruby-to-js">question</a> about converting functions from Ruby to JS, and now I'm trying to implement with JS to PHP, but something does not work, tell me what I'm missing?
The code on JS:
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>function transpose(a) {
 return a.length === 0 ? a : a[0].map((col, i) =&gt; a.map((row) =&gt; row[i]))
}

function f(a) {
 return a.length === 0 ? [] : [...a.shift(), ...f(transpose(a).reverse())];
} 

console.log(f([[1, 2, 3, 4], [12, 13, 14, 5], [11, 16, 15, 6], [10, 9, 8, 7]]))</code></pre>
</div>
</div>

In PHP do so:
<pre><code>function transpose($array) 
{
 if (count($array) === 0) return $array;

 foreach ($array as $rowkey =&gt; $row)
 {
 foreach($row as $colkey =&gt; $col)
 {
 $out[$colkey][$rowkey] = $col;
 }
 }

 return $out;
}

function f($a)
{
 return (count($a) === 0) 
 ? [] 
 : [
 array_shift(...$a), 
 f(array_reverse(transpose(...$a)))
 ];
}

print_r(f([[1,2,3,4],[10,11,12,5],[9,8,7,6]]));
</code></pre>
Is there a problem? Errors:
<blockquote>
Warning: array_shift() expects exactly 1 parameter, 3 given in [...][...] on line 24
Invalid argument supplied for foreach() in [...][...] on line 10
Warning: Invalid argument supplied for foreach() in [...][...] on line 10
Warning: Invalid argument supplied for foreach() in [...][...] on line 10
Warning: Invalid argument supplied for foreach() in [...][...] on line 10
Notice: Undefined variable: out in [...][...] on line 16
Warning: array_reverse() expects parameter 1 to be array, null given in [...][...] on line 25
Warning: count(): Parameter must be an array or an object that implements Countable in [...][...] on line 21
</blockquote>

What is the PHP equivalent of JavaScript spread syntax for constructing an array?

我已经问过一个关于将函数从Ruby转换到JS的，现在我正在尝试实现JS到PHP，但有些东西不起作用，告诉我我遗漏了什么？JS上的代码：​function transpose(a) {    return a.length === 0 ? a : a[0].map((col, i) => a.map((row) => r...

问用来构造数组的JavaScript扩展语法在PHP中的等价物是什么？
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