array_walk_recursive

(PHP 5, PHP 7)

array_walk_recursive — 锟斤拷锟斤拷锟斤拷锟叫碉拷每锟斤拷锟斤拷员锟捷癸拷锟接︼拷锟斤拷没锟斤拷锟斤拷锟�

说锟斤拷

array_walk_recursive ( array &$array , callable $callback [, mixed $userdata = NULL ] ) : bool

锟斤拷锟矫伙拷锟皆讹拷锟藉函锟斤拷 callback 应锟矫碉拷 array 锟斤拷锟斤拷锟叫碉拷每锟斤拷锟斤拷元锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷莨榈斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺ワ拷锟�

锟斤拷锟斤拷

array

锟斤拷锟斤拷锟斤拷锟斤拷椤�

callback

锟斤拷锟斤拷锟斤拷锟斤拷锟� callback 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷array 锟斤拷锟斤拷锟斤拷值锟斤拷为锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为锟节讹拷锟斤拷锟斤拷

Note:

锟斤拷锟� callback 锟斤拷要直锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫碉拷值锟斤拷锟斤拷锟� callback 锟侥碉拷一锟斤拷锟斤拷锟斤拷指锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿何讹拷锟斤拷些锟斤拷元锟侥改憋拷也锟斤拷锟斤拷谋锟皆硷拷锟斤拷楸撅拷锟�

userdata

锟斤拷锟斤拷峁╋拷丝锟窖★拷锟斤拷锟� userdata锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷革拷 callback锟斤拷

锟斤拷锟斤拷值

锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE锟斤拷

锟斤拷锟斤拷

Example #1 array_walk_recursive() 锟斤拷锟斤拷

<?php
$sweet = array('a' => 'apple', 'b' => 'banana');
$fruits = array('sweet' => $sweet, 'sour' => 'lemon');

function test_print($item, $key)
{
    echo "$key holds $item\n";
}

array_walk_recursive($fruits, 'test_print');
?>

锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�

a holds apple
b holds banana
sour holds lemon

注锟斤拷锟斤拷锟斤拷锟叫的硷拷 'sweet' 锟斤拷没锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟轿猴拷锟斤拷值为 array 锟侥硷拷锟斤拷锟斤拷锟结被锟斤拷锟捷碉拷锟截碉拷锟斤拷锟斤拷锟斤拷去锟斤拷

锟轿硷拷

  • array_walk() - 使锟斤拷锟矫伙拷锟皆讹拷锟藉函锟斤拷锟斤拷锟斤拷锟斤拷锟叫碉拷每锟斤拷元锟斤拷锟斤拷锟截碉拷锟斤拷锟斤拷
  • callback 锟斤拷锟酵碉拷锟斤拷息