array_shift：只有变量应该通过引用传递 php 中的错误[重复]

array_shift：只有变量应该通过引用传递 php 中的错误

php
$students = ["John", "Jane", "Tom"];
$firstStudent = array_shift($students);
echo "The first student is: " . $firstStudent . "\n";
echo "Remaining students: " . implode(", ", $students);

The first student is: John
Remaining students: Jane, Tom

php
print_r($students);

Array
(
    [0] => John
    [1] => Jane
    [2] => Tom
)

php
$students = ["John", "Jane", "Tom"];
array_shift($students);
$firstStudent = $students[0];
echo "The first student is: " . $firstStudent . "\n";
echo "Remaining students: " . implode(", ", $students);

The first student is: Jane
Remaining students: Jane, Tom

php
print_r($students);

Array
(
    [0] => Jane
    [1] => Tom
)