php 将数据动态添加到数组
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Add data dynamically to an Array
提问by sikas
I want to add data to an array dynamically.
我想动态地将数据添加到数组中。
回答by TimCinel
There are quite a few ways to work with dynamic arrays in PHP. Initialise an array:
有很多方法可以在 PHP 中使用动态数组。初始化一个数组：
$array = array();
Add to an array:
添加到数组：
$array[] = "item";
$array[$key] = "item";
array_push($array, "item", "another item");
Remove from an array:
从数组中删除：
$item = array_pop($array);
$item = array_shift($array);
unset($array[$key]);
There are plenty more ways, these are just some examples.
还有很多方法，这些只是一些例子。
回答by NikiC
$array[] = 'Hi';
pushes on top of the array.
推到数组的顶部。
$array['Hi'] = 'FooBar';
sets a specific index.
设置特定索引。
回答by Himadri
Let's say you have defined an empty array:
假设您定义了一个空数组：
$myArr = array();
If you want to simply add an element, e.g. 'New Element to Array', write
如果你想简单地添加一个元素，例如'New Element to Array'，写
$myArr[] = 'New Element to Array';
if you are calling the data from the database, below code will work fine
如果您从数据库中调用数据，下面的代码将正常工作
$sql = "SELECT $element FROM $table";
$query = mysql_query($sql);
if(mysql_num_rows($query) > 0)//if it finds any row
{
while($result = mysql_fetch_object($query))
{
//adding data to the array
$myArr[] = $result->$element;
}
}
回答by Quy Le
You should use method array_push to add value or array to array exists
您应该使用方法 array_push 将值或数组添加到数组中
$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
print_r($stack);
/** GENERATED OUTPUT
Array
(
[0] => orange
[1] => banana
[2] => apple
[3] => raspberry
)
*/
回答by Mewp
Like this?:
像这样？：
$array[] = 'newItem';
回答by Gordon
In additon to directly accessing the array, there is also
除了直接访问数组，还有
array_push— Push one or more elements onto the end of array
array_push— 将一个或多个元素压入数组末尾
回答by Dherya
$dynamicarray = array();
for($i=0;$i<10;$i++)
{
$dynamicarray[$i]=$i;
}
回答by majick
just for fun...
只是为了好玩...
$array_a = array('0'=>'foo', '1'=>'bar');
$array_b = array('foo'=>'0', 'bar'=>'1');
$array_c = array_merge($array_a,$array_b);
$i = 0; $j = 0;
foreach ($array_c as $key => $value) {
if (is_numeric($key)) {$array_d[$i] = $value; $i++;}
if (is_numeric($value)) {$array_e[$j] = $key; $j++;}
}
print_r($array_d);
print_r($array_e);
回答by Joseph Brokefoot Williams
Fastest way I think
我认为最快的方式
$newArray = array();
for($count == 0;$row = mysql_fetch_assoc($getResults);$count++)
{
foreach($row as $key => $value)
{
$newArray[$count]{$key} = $row[$key];
}
}
回答by ShivarajRH
Adding array elements dynamically to an Array And adding new element to an Array
将数组元素动态添加到数组并将新元素添加到数组
$samplearr=array();
$count = 0;
foreach ($rslt as $row) {
$arr['feeds'][$count]['feed_id'] = $row->feed_id;
$arr['feeds'][$count]['feed_title'] = $row->feed_title;
$arr['feeds'][$count]['feed_url'] = $row->feed_url;
$arr['feeds'][$count]['cat_name'] = $this->get_catlist_details($row->feed_id);
foreach ($newelt as $cat) {
array_push($samplearr, $cat);
}
++$count;
}
$arr['categories'] = array_unique($samplearr); //,SORT_STRING
$response = array("status"=>"success","response"=>"Categories exists","result"=>$arr);
