PHP 배열 정의에는 여러 유형이 있습니다.

$arr=array(1,2,3,4);

　　$arr=array(
　　　'name'=>'myj',
　　　'age'=>'18',
　　　'phone'=>'1888888888'
　);

　　$arr=array();

$a = 'aaa';
$b = 'bbb';
$c = 'ccc';
$arr3 = compact('a','b','c');

{"a":"aaa","b":"bbb","c":"ccc"}

$arr_key = array('a','b','c','d');
$arr_val = array('1','2','3','4');
echo var_dump(array_combine($arr_key,$arr_val));

 'a' => string '1' (length=1)
'b' => string '2' (length=1)
'c' => string '3' (length=1)
'd' => string '4' (length=1)

array_fill(start,number,value)

$a=array_fill(2,3,"Dog");
print_r($a);

Array ( [2] => Dog [3] => Dog [4] => Dog )

array range(first,second,step)

$arr = range(1,5); 输出：[1,2,3,4,5]
$arr = range(1,15,3); 输出：1,4,7,10,13