Answer 1

Answer 2

Answer 3

假设你已经定义了一个空数组：

$myArr = array();

如果您只想添加一个元素，例如'新元素到数组'，写

$myArr[] = 'New Element to Array';

如果您从数据库调用数据，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;
   }
}

Answer 4

您应该使用方法array_push将值或数组添加到存在的数组

$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
print_r($stack);

/** GENERATED OUTPUT
Array
(
    [0] => orange
    [1] => banana
    [2] => apple
    [3] => raspberry
)
*/

Answer 5

Answer 6

Answer 7

$dynamicarray = array();

for($i=0;$i<10;$i++)
{
    $dynamicarray[$i]=$i;
}

Answer 8

  

动态向数组添加数组元素并添加新元素   到一个数组

$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);

Answer 9

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);

Answer 10

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];
    }
}