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问题描述
好吧,假设我有5阵列,都只是索引的数组,我想将它们结合起来,这是我可以计算最好的方式,有没有更好的方式来处理呢?
函数mymap_arrays(){
的$ args = func_get_args();
$键= array_shift($参数);
返回array_combine($键,$参数);
}
$键=阵列('U1','U2','U3');
$名称=阵列('鲍勃','弗雷德','乔');
$电子邮件=阵列('bob@mail.com','fred@mail.com','joe@mail.com');
$ IDS =阵列(1,2,3);
$ u_keys = array_fill(0,计数($名),阵列(名称,电子邮件,ID));
$用户= array_combine($键,array_map('mymap_arrays',$ u_keys,$名称,$电子邮件,$ IDS));
这将返回:
阵列
(
[U1] =>排列
(
[名] =>短发
[邮件] => bob@mail.com
[ID] => 1
) [U2] =>排列
(
[名] =>弗雷德
[邮件] => fred@mail.com
[ID] => 2
) [U3] =>排列
(
[名] =>乔
[邮件] => joe@mail.com
[ID] => 3
))
编辑:经过大量的标杆我用版本玻璃机器人的答案来处理可变数量阵列蜿蜒的,这是比他明显要慢,但比我原来的速度:
函数test_my_new(){
的$ args = func_get_args();
$键= array_shift($参数);
$ vkeys = array_shift($参数);
$结果=阵列();
的foreach($ ARGS为$关键=> $阵列){
$ v键= array_shift($ vkeys);
的foreach($数组作为$ AKEY => $ VAL){
$结果[$键[$ AKEY] [$ v键] = $ VAL;
}
}
返回$结果;
}
$键=阵列('U1','U2','U3');
$名称=阵列('鲍勃','弗雷德','乔');
$电子邮件=阵列('bob@mail.com','fred@mail.com','joe@mail.com');
$ IDS =阵列(1,2,3);
$ vkeys =阵列(名称,电子邮件,ID);
test_my_new($键,$ vkeys,$名称,$电子邮件,$ IDS);
解决方案
亲自为可读性我会做这种方式:
$键=阵列('U1','U2','U3');
$名称=阵列('鲍勃','弗雷德','乔');
$电子邮件=阵列('bob@mail.com','fred@mail.com','joe@mail.com');
$ IDS =阵列(1,2,3);
$结果=阵列();的foreach($键作为的$ id => $键){
$结果[$关键] =阵列(
'名'=> $名称[$ ID]
电子邮件=> $电子邮件[$ ID]
'ID'=> $ IDS [$ ID]
);
}
ok, assuming I have 5 arrays, all just indexed arrays, and I would like to combine them, this is the best way I can figure, is there a better way to handle this?
function mymap_arrays(){
$args=func_get_args();
$key=array_shift($args);
return array_combine($key,$args);
}
$keys=array('u1','u2','u3');
$names=array('Bob','Fred','Joe');
$emails=array('bob@mail.com','fred@mail.com','joe@mail.com');
$ids=array(1,2,3);
$u_keys=array_fill(0,count($names),array('name','email','id'));
$users=array_combine($keys,array_map('mymap_arrays',$u_keys,$names,$emails,$ids));
this returns:
Array
(
[u1] => Array
(
[name] => Bob
[email] => bob@mail.com
[id] => 1
)
[u2] => Array
(
[name] => Fred
[email] => fred@mail.com
[id] => 2
)
[u3] => Array
(
[name] => Joe
[email] => joe@mail.com
[id] => 3
)
)
EDIT: After lots of benchmarking I wend with a version of Glass Robots answer to handle a variable number of arrays, it's slower than his obviously, but faster than my original:
function test_my_new(){
$args=func_get_args();
$keys=array_shift($args);
$vkeys=array_shift($args);
$results=array();
foreach($args as $key=>$array){
$vkey=array_shift($vkeys);
foreach($array as $akey=>$val){
$result[$keys[$akey]][$vkey]=$val;
}
}
return $result;
}
$keys=array('u1','u2','u3');
$names=array('Bob','Fred','Joe');
$emails=array('bob@mail.com','fred@mail.com','joe@mail.com');
$ids=array(1,2,3);
$vkeys=array('name','email','id');
test_my_new($keys,$vkeys,$names,$emails,$ids);
解决方案
Personally for readability I would do it this way:
$keys = array('u1','u2','u3');
$names = array('Bob','Fred','Joe');
$emails = array('bob@mail.com','fred@mail.com','joe@mail.com');
$ids = array(1,2,3);
$result = array();
foreach ($keys as $id => $key) {
$result[$key] = array(
'name' => $names[$id],
'email' => $emails[$id],
'id' => $ids[$id],
);
}
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