it is very clear in the document:
Note: Please note that the parameter passed in call_user_func () cannot be passed to the reference
however, PHP7.0 the following example comes alive
Array
(
[0] => 0
[1] => 10
[2] => 100
[3] => 100
)
Array
(
[0] => 4
[1] => 1
[2] => 2
[3] => 3
)Why is this happening
version 5.6 does the same thing
<?php
echo "PHP:".phpversion();
$arr = [10, 100, 100, 0];
$parma = [1, 3, 2, 4];
call_user_func('array_multisort', $arr, $parma);
print_r($arr);
print_r($parma);
$ar1 = array(10, 100, 100, 0);
$ar2 = array(1, 3, 2, 4);
array_multisort($ar1, $ar2);
print_r($ar1);
print_r($ar2);
?>PHP:5.6.9-0+deb8u1
Array
(
[0] => 10
[1] => 100
[2] => 100
[3] => 0
)
Array
(
[0] => 1
[1] => 3
[2] => 2
[3] => 4
)
Array
(
[0] => 0
[1] => 10
[2] => 100
[3] => 100
)
Array
(
[0] => 4
[1] => 1
[2] => 2
[3] => 3
)I guess it's because of the version. Several other versions of phpstudy are normal, and there is one downstairs
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