<?php
$a = array(
'0'=>array('id'=>'1'),
'1'=>array('id'=>'2'),
'2'=>array('id'=>'3'),
);
$b = array(
'0'=>array('uid'=>'1'),
'1'=>array('uid'=>'2'),
'2'=>array('uid'=>'4'),
);
for ($i=0; $i < count($a); $i++) {
$aa[$i] = $a[$i]['id'];
}
for ($m=0; $m < count($b); $m++) {
$bb[$m] = $b[$m]['uid'];
}
$result = array_intersect($aa, $bb);
print_r($result);
?><?php
$a= array(
0 =>array(
'id' => '1'
),
1 =>array(
'id' => '2'
),
2 =>array(
'id' => '3'
)
);
$b= array(
0 =>array(
'uid' => '1'
),
1 =>array(
'uid' => '2'
));
$c = array();
foreach($a as $key => $valueA){
$id = $valueA['id'];
foreach($b as $keys => $valueB){
if($id == $valueB['uid']){
$c[] = $id;
}
}
}
print_r($c);
?><?php
$c = array();
foreach($a as $keyA => $valueA){
foreach($b as $keyB => $valueB){
if($valueA['id'] == $valueB['uid']){
$c[] = $valueA['id'];
unset($b[$keyB]); //优化减少第二层循环数量
}
}
}
dump($c);
?>
