(PHP 4, PHP 5, PHP 7)
array_flip — 锟斤拷锟斤拷锟斤拷锟斤拷锟叫的硷拷锟斤拷值
$array
) : array
array_flip() 锟斤拷锟斤拷一锟斤拷锟斤拷转锟斤拷锟� array锟斤拷锟斤拷锟斤拷
array 锟叫的硷拷锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷锟�
array 锟叫碉拷值锟斤拷锟剿硷拷锟斤拷锟斤拷
注锟斤拷 array 锟叫碉拷值锟斤拷要锟杰癸拷锟斤拷为锟较凤拷锟侥硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷
integer 锟斤拷锟斤拷 string锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷筒锟斤拷裕锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷妫拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥硷拷锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诮锟斤拷锟斤拷锟斤拷
锟斤拷锟酵伙拷锟街碉拷锟斤拷侄锟轿ｏ拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟街碉拷锟斤拷锟斤拷锟斤拷锟斤拷岜伙拷锟斤拷锟斤拷锟�
array要锟斤拷锟斤拷锟斤拷/值锟皆碉拷锟斤拷锟介。
锟缴癸拷时锟斤拷锟截斤拷锟斤拷锟斤拷锟斤拷锟斤拷椋拷锟斤拷失锟杰凤拷锟斤拷 NULL锟斤拷
Example #1 array_flip() 锟斤拷锟斤拷
<?php
$input = array("oranges", "apples", "pears");
$flipped = array_flip($input);
print_r($flipped);
?>
锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�
Array
(
[oranges] => 0
[apples] => 1
[pears] => 2
)
Example #2 array_flip() 锟斤拷锟斤拷 : 锟斤拷突
<?php
$input = array("a" => 1, "b" => 1, "c" => 2);
$flipped = array_flip($input);
print_r($flipped);
?>
锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�
Array
(
[1] => b
[2] => c
)