php 将关联数组转换为索引
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Convert associative array into indexed
提问by Graeme Leighfield
Ive seen a few examples by using array_values, but cant quite make out how to get it to work...
我已经看到了一些使用 array_values 的例子，但不能完全弄清楚如何让它工作......
I have an associative array thats passed via POST, I need to convert it into a indexed array...
我有一个通过 POST 传递的关联数组，我需要将其转换为索引数组...
My print_r($_POST) gives me this... I need all of this put into an indexed array :)
我的 print_r($_POST) 给了我这个......我需要将所有这些放入一个索引数组中:)
Array (
[fieldnames] => 36771X21X198|36771X21X199|36771X21X200|36771X21X201|36771X21X202
[36771X21X198] => 3434343
[display36771X21X198] => on
[36771X21X199] => 5656565
[display36771X21X199] => on
[36771X21X200] => 89898989
[display36771X21X200] => on
[36771X21X201] => 90909090
[display36771X21X201] => on
[36771X21X202] => 12121212
[display36771X21X202] => on
[move] => movesubmit
[move2] => ONLINE Submit
[thisstep] => 1
[sid] => 36771
[token] => 1234567890
)
回答by ghbarratt
Observe this amazing way to convert your $_POSTinto a numerically indexed array:
观察这种将您$_POST转换为数字索引数组的惊人方式：
$numerical = array_values($_POST);
but what if you want to preserve your keys? Perhaps you want something like this?
但是如果你想保存你的钥匙怎么办？也许你想要这样的东西？
$numerical = array();
$sep = ':';
foreach($_POST as $k=>$v)
{
$numerical[] = $k.$sep.$v;
}
$numerical will then have:
$numeric 将有：
Array
(
[0] => fieldnames:36771X21X198|36771X21X199|36771X21X200|36771X21X201|36771X21X202
[1] => 36771X21X198:3434343
[2] => display36771X21X198:on
[3] => 36771X21X199:5656565
[4] => display36771X21X199:on
[5] => 36771X21X200:89898989
[6] => display36771X21X200:on
[7] => 36771X21X201:90909090
[8] => display36771X21X201:on
[9] => 36771X21X202:12121212
[10] => display36771X21X202:on
[11] => move:movesubmit
[12] => move2:ONLINE Submit
[13] => thisstep:1
[14] => sid:36771
[15] => token:1234567890
)
or, for my final example:
或者，对于我的最后一个例子：
$fieldnames_original = explode('|', $_POST['fieldnames']);
$fieldnames_actual = array();
$values = array();
foreach($_POST as $k=>$v)
{
if($k!='fieldnames')
{
$fieldnames_actual[] = $k;
$values[] = $v;
}
}
which will set 3 arrays:
这将设置 3 个数组：
$fieldnames_original:
$fieldnames_original:
Array
(
[0] => 36771X21X198
[1] => 36771X21X199
[2] => 36771X21X200
[3] => 36771X21X201
[4] => 36771X21X202
)
$fieldnames_actual:
$fieldnames_actual:
Array
(
[0] => 36771X21X198
[1] => display36771X21X198
[2] => 36771X21X199
[3] => display36771X21X199
[4] => 36771X21X200
[5] => display36771X21X200
[6] => 36771X21X201
[7] => display36771X21X201
[8] => 36771X21X202
[9] => display36771X21X202
[10] => move
[11] => move2
[12] => thisstep
[13] => sid
[14] => token
)
and $values:
和 $values：
Array
(
[0] => 3434343
[1] => on
[2] => 5656565
[3] => on
[4] => 89898989
[5] => on
[6] => 90909090
[7] => on
[8] => 12121212
[9] => on
[10] => movesubmit
[11] => ONLINE Submit
[12] => 1
[13] => 36771
[14] => 1234567890
)
回答by Graeme Leighfield
function
功能
function array_default_key($array) {
$arrayTemp = array();
$i = 0;
foreach ($array as $key => $val) {
$arrayTemp[$i] = $val;
$i++;
}
return $arrayTemp;
}
Pass the associative array as a parameter and it will convert into the default index of the array. For example: we have Array('2014-04-30'=>43,'2014-04-29'=>41)after the call to the function the array will be Array(0=>43,1=>41).
将关联数组作为参数传递，它将转换为数组的默认索引。例如：Array('2014-04-30'=>43,'2014-04-29'=>41)在调用函数之后，数组将是Array(0=>43,1=>41)。
