php 2个二维数组合成一个2维数组，条件是lid=id的合并？

Question

Array(
[0] => Array(
[lid] => 67
[title] => T恤
)
[1] => Array(
[lid] => 27
[title] => 衬衣
)
)
Array(
[0] => Array(
[id] => 67
[url] => baidu.com
)
[1] => Array(
[id] => 27
[url] => jd.com
)
)
求大神解

Answer 1

按照你的要求合并两个二维数组的PHP程序如下

<?php

$arr1 =array(array('lid' => 67, 'title' => 'T恤'), array('lid' => 27, 'title' => '衬衣'));

$arr2 =array(array('id' => 67, 'url' => 'baidu.com'), array('id' => 27, 'url' => 'jd.com'));

$result=array();

for($i=0;$i<count($arr1);$i++){ 

$result[$i]=$arr1[$i];

for($j=0;$j<count($arr2);$j++){ 

if ($arr1[$i]['lid']==$arr2[$j]['id']){ 

$result[$i]['url'] = $arr2[$j]['url'];

}

}

}

print_r($result);

?>

Answer 2

$arr1 = array(array('lid' => 67, 'title' => 'T恤'), array('lid' => 27, 'title' => '衬衣'));
$arr2 = array(array('id' => 67, 'url' => 'baidu.com'), array('id' => 27, 'url' => 'jd.com'));
$data = [];
foreach($arr1 as $value1)
{
$lid = $value1['lid'];
foreach($arr2 as $value2)
{
if($lid == $value2['id'])
{
$data[] = array_merge($value1, $value2);
break;
}
}
}
var_dump($data);