我想把一个值插入到数组最前面,并规定他的key,该如何写?如 array(
'id_1' => '值1'
'id_2' => '值2'
)
我构成
array(
'id_3' => '值3'
'id_1' => '值1'
'id_2' => '值2'
)代码如何写,谢谢 !!!!
'id_1' => '值1'
'id_2' => '值2'
)
我构成
array(
'id_3' => '值3'
'id_1' => '值1'
'id_2' => '值2'
)代码如何写,谢谢 !!!!
$arr = array_merge(array(3), $arr);print_r($arr);
$someArray = array(id_1=>'值1', id_2=>'值2'); $someArray = array(id_3=>'值3') + $someArray;
?>
'id_1' => '值1',
'id_2' => '值2',
);
$b = array_merge(array( 'id_3' => '值3'), $a);print_r($b); //Array ( [id_3] => 值3 [id_1] => 值1 [id_2] => 值2 )