$user=array(
        'id'=>'5',
        'name'=>'user',
        'email'=>'[email protected]',
        'status'=>'1');

如果要增加一項，$user['xxx'] = ‘xxx’ 就可以了，顯然array_unshift是不行的，如何在這個陣列的頭部增加一項呢？

$user=array(
    'id'=>'5',
    'name'=>'user',
    'email'=>'[email protected]',
    'status'=>'1');
$new=array();
$new_element_key="key";
$new_element_value="value";
$new[$new_element_key]=$new_element_value;
$keys=array_keys($user);$values=array_values($user);
while(!empty($keys)){
    $new[array_shift($keys)]=array_shift($values);
}
$user=$new;$new=null;
print_r($user);
 

$t_user = array("newadd"=>"newvalue");
$user=array(
    'id'=>'5',
    'name'=>'user',
    'email'=>'[email protected]',
    'status'=>'1');
$user = $t_user+$user;
var_dump($user);

$user=array(
'id'=>'5',
'name'=>'user',
'email'=>'[email protected]',
'status'=>'1');
$user1['xxx'] = 'xxxx';
$aa = array_merge($user1,$user);
 

$needle = array('xxx'=>'xxx');
$target = array(
    'id'=>'5',
    'name'=>'user',
    'email'=>'[email protected]',
    'status'=>'1'
);
function selfArrayUnshift($needle,$target)
{
    foreach ($target as $key=>$value)
    {
        $needle[$key] = $value;
    }
    return $needle;
}

var_dump(selfArrayUnshift($needle,$target));
 

$user=array(
    'id'=>'5',
    'name'=>'user',
    'email'=>'[email protected]',
    'status'=>'1');
$user = array_reverse($user);
$user['xxx'] = 'xxx';
$user = array_reverse($user);